261146480

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{307}}^1$

素因数の和:372

約数の個数: 160

約数和(自身を含む): 733286400

約数和(自身を除く): 472139920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 56, 62, 70, 80, 98, 112, 124, 140, 155, 196, 217, 245, 248, 280, 307, 310, 343, 392, 434, 490, 496, 560, 614, 620, 686, 784, 868, 980, 1085, 1228, 1240, 1372, 1519, 1535, 1715, 1736, 1960, 2149, 2170, 2456, 2480, 2744, 3038, 3070, 3430, 3472, 3920, 4298, 4340, 4912, 5488, 6076, 6140, 6860, 7595, 8596, 8680, 9517, 10633, 10745, 12152, 12280, 13720, 15043, 15190, 17192, 17360, 19034, 21266, 21490, 24304, 24560, 27440, 30086, 30380, 34384, 38068, 42532, 42980, 47585, 53165, 60172, 60760, 66619, 75215, 76136, 85064, 85960, 95170, 105301, 106330, 120344, 121520, 133238, 150430, 152272, 170128, 171920, 190340, 210602, 212660, 240688, 266476, 300860, 333095, 380680, 421204, 425320, 466333, 526505, 532952, 601720, 666190, 761360, 842408, 850640, 932666, 1053010, 1065904, 1203440, 1332380, 1684816, 1865332, 2106020, 2331665, 2664760, 3264331, 3730664, 4212040, 4663330, 5329520, 6528662, 7461328, 8424080, 9326660, 13057324, 16321655, 18653320, 26114648, 32643310, 37306640, 52229296, 65286620, 130573240, 261146480]

約数ペア:

[(1, 261146480), (2, 130573240), (4, 65286620), (5, 52229296), (7, 37306640), (8, 32643310), (10, 26114648), (14, 18653320), (16, 16321655), (20, 13057324), (28, 9326660), (31, 8424080), (35, 7461328), (40, 6528662), (49, 5329520), (56, 4663330), (62, 4212040), (70, 3730664), (80, 3264331), (98, 2664760), (112, 2331665), (124, 2106020), (140, 1865332), (155, 1684816), (196, 1332380), (217, 1203440), (245, 1065904), (248, 1053010), (280, 932666), (307, 850640), (310, 842408), (343, 761360), (392, 666190), (434, 601720), (490, 532952), (496, 526505), (560, 466333), (614, 425320), (620, 421204), (686, 380680), (784, 333095), (868, 300860), (980, 266476), (1085, 240688), (1228, 212660), (1240, 210602), (1372, 190340), (1519, 171920), (1535, 170128), (1715, 152272), (1736, 150430), (1960, 133238), (2149, 121520), (2170, 120344), (2456, 106330), (2480, 105301), (2744, 95170), (3038, 85960), (3070, 85064), (3430, 76136), (3472, 75215), (3920, 66619), (4298, 60760), (4340, 60172), (4912, 53165), (5488, 47585), (6076, 42980), (6140, 42532), (6860, 38068), (7595, 34384), (8596, 30380), (8680, 30086), (9517, 27440), (10633, 24560), (10745, 24304), (12152, 21490), (12280, 21266), (13720, 19034), (15043, 17360), (15190, 17192)]