18280238720

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:803

約数の個数: 256

約数和(自身を含む): 48413998080

約数和(自身を除く): 30133759360

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 62, 64, 68, 80, 83, 85, 124, 128, 136, 155, 160, 166, 170, 248, 272, 310, 320, 332, 340, 415, 496, 527, 544, 620, 640, 653, 664, 680, 830, 992, 1054, 1088, 1240, 1306, 1328, 1360, 1411, 1660, 1984, 2108, 2176, 2480, 2573, 2612, 2635, 2656, 2720, 2822, 3265, 3320, 3968, 4216, 4960, 5146, 5224, 5270, 5312, 5440, 5644, 6530, 6640, 7055, 8432, 9920, 10292, 10448, 10540, 10624, 10880, 11101, 11288, 12865, 13060, 13280, 14110, 16864, 19840, 20243, 20584, 20896, 21080, 22202, 22576, 25730, 26120, 26560, 28220, 33728, 40486, 41168, 41792, 42160, 43741, 44404, 45152, 51460, 52240, 53120, 54199, 55505, 56440, 67456, 80972, 82336, 83584, 84320, 87482, 88808, 90304, 101215, 102920, 104480, 108398, 111010, 112880, 161944, 164672, 168640, 174964, 177616, 180608, 202430, 205840, 208960, 216796, 218705, 222020, 225760, 270995, 323888, 329344, 337280, 344131, 349928, 355232, 404860, 411680, 417920, 433592, 437410, 444040, 451520, 541990, 647776, 688262, 699856, 710464, 809720, 823360, 867184, 874820, 888080, 903040, 921383, 1083980, 1295552, 1376524, 1399712, 1420928, 1619440, 1646720, 1680169, 1720655, 1734368, 1749640, 1776160, 1842766, 2167960, 2591104, 2753048, 2799424, 3238880, 3360338, 3441310, 3468736, 3499280, 3552320, 3685532, 4335920, 4606915, 5506096, 5598848, 6477760, 6720676, 6882620, 6937472, 6998560, 7104640, 7371064, 8400845, 8671840, 9213830, 11012192, 12955520, 13441352, 13765240, 13997120, 14742128, 16801690, 17343680, 18427660, 22024384, 26882704, 27530480, 27994240, 28562873, 29484256, 33603380, 34687360, 36855320, 44048768, 53765408, 55060960, 57125746, 58968512, 67206760, 73710640, 107530816, 110121920, 114251492, 117937024, 134413520, 142814365, 147421280, 215061632, 220243840, 228502984, 268827040, 285628730, 294842560, 457005968, 537654080, 571257460, 589685120, 914011936, 1075308160, 1142514920, 1828023872, 2285029840, 3656047744, 4570059680, 9140119360, 18280238720]

約数ペア:

[(1, 18280238720), (2, 9140119360), (4, 4570059680), (5, 3656047744), (8, 2285029840), (10, 1828023872), (16, 1142514920), (17, 1075308160), (20, 914011936), (31, 589685120), (32, 571257460), (34, 537654080), (40, 457005968), (62, 294842560), (64, 285628730), (68, 268827040), (80, 228502984), (83, 220243840), (85, 215061632), (124, 147421280), (128, 142814365), (136, 134413520), (155, 117937024), (160, 114251492), (166, 110121920), (170, 107530816), (248, 73710640), (272, 67206760), (310, 58968512), (320, 57125746), (332, 55060960), (340, 53765408), (415, 44048768), (496, 36855320), (527, 34687360), (544, 33603380), (620, 29484256), (640, 28562873), (653, 27994240), (664, 27530480), (680, 26882704), (830, 22024384), (992, 18427660), (1054, 17343680), (1088, 16801690), (1240, 14742128), (1306, 13997120), (1328, 13765240), (1360, 13441352), (1411, 12955520), (1660, 11012192), (1984, 9213830), (2108, 8671840), (2176, 8400845), (2480, 7371064), (2573, 7104640), (2612, 6998560), (2635, 6937472), (2656, 6882620), (2720, 6720676), (2822, 6477760), (3265, 5598848), (3320, 5506096), (3968, 4606915), (4216, 4335920), (4960, 3685532), (5146, 3552320), (5224, 3499280), (5270, 3468736), (5312, 3441310), (5440, 3360338), (5644, 3238880), (6530, 2799424), (6640, 2753048), (7055, 2591104), (8432, 2167960), (9920, 1842766), (10292, 1776160), (10448, 1749640), (10540, 1734368), (10624, 1720655), (10880, 1680169), (11101, 1646720), (11288, 1619440), (12865, 1420928), (13060, 1399712), (13280, 1376524), (14110, 1295552), (16864, 1083980), (19840, 921383), (20243, 903040), (20584, 888080), (20896, 874820), (21080, 867184), (22202, 823360), (22576, 809720), (25730, 710464), (26120, 699856), (26560, 688262), (28220, 647776), (33728, 541990), (40486, 451520), (41168, 444040), (41792, 437410), (42160, 433592), (43741, 417920), (44404, 411680), (45152, 404860), (51460, 355232), (52240, 349928), (53120, 344131), (54199, 337280), (55505, 329344), (56440, 323888), (67456, 270995), (80972, 225760), (82336, 222020), (83584, 218705), (84320, 216796), (87482, 208960), (88808, 205840), (90304, 202430), (101215, 180608), (102920, 177616), (104480, 174964), (108398, 168640), (111010, 164672), (112880, 161944)]