20018083840

素因数分解:

$2^{11}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3319}}^1$

素因数の和:3396

約数の個数: 192

約数和(自身を含む): 52206336000

約数和(自身を除く): 32188252160

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 256, 304, 310, 320, 380, 496, 512, 589, 608, 620, 640, 760, 992, 1024, 1178, 1216, 1240, 1280, 1520, 1984, 2048, 2356, 2432, 2480, 2560, 2945, 3040, 3319, 3968, 4712, 4864, 4960, 5120, 5890, 6080, 6638, 7936, 9424, 9728, 9920, 10240, 11780, 12160, 13276, 15872, 16595, 18848, 19456, 19840, 23560, 24320, 26552, 31744, 33190, 37696, 38912, 39680, 47120, 48640, 53104, 63061, 63488, 66380, 75392, 79360, 94240, 97280, 102889, 106208, 126122, 132760, 150784, 158720, 188480, 194560, 205778, 212416, 252244, 265520, 301568, 315305, 317440, 376960, 411556, 424832, 504488, 514445, 531040, 603136, 630610, 753920, 823112, 849664, 1008976, 1028890, 1062080, 1206272, 1261220, 1507840, 1646224, 1699328, 1954891, 2017952, 2057780, 2124160, 2522440, 3015680, 3292448, 3398656, 3909782, 4035904, 4115560, 4248320, 5044880, 6031360, 6584896, 6797312, 7819564, 8071808, 8231120, 8496640, 9774455, 10089760, 13169792, 15639128, 16143616, 16462240, 16993280, 19548910, 20179520, 26339584, 31278256, 32287232, 32924480, 33986560, 39097820, 40359040, 52679168, 62556512, 64574464, 65848960, 78195640, 80718080, 105358336, 125113024, 129148928, 131697920, 156391280, 161436160, 210716672, 250226048, 263395840, 312782560, 322872320, 500452096, 526791680, 625565120, 645744640, 1000904192, 1053583360, 1251130240, 2001808384, 2502260480, 4003616768, 5004520960, 10009041920, 20018083840]

約数ペア:

[(1, 20018083840), (2, 10009041920), (4, 5004520960), (5, 4003616768), (8, 2502260480), (10, 2001808384), (16, 1251130240), (19, 1053583360), (20, 1000904192), (31, 645744640), (32, 625565120), (38, 526791680), (40, 500452096), (62, 322872320), (64, 312782560), (76, 263395840), (80, 250226048), (95, 210716672), (124, 161436160), (128, 156391280), (152, 131697920), (155, 129148928), (160, 125113024), (190, 105358336), (248, 80718080), (256, 78195640), (304, 65848960), (310, 64574464), (320, 62556512), (380, 52679168), (496, 40359040), (512, 39097820), (589, 33986560), (608, 32924480), (620, 32287232), (640, 31278256), (760, 26339584), (992, 20179520), (1024, 19548910), (1178, 16993280), (1216, 16462240), (1240, 16143616), (1280, 15639128), (1520, 13169792), (1984, 10089760), (2048, 9774455), (2356, 8496640), (2432, 8231120), (2480, 8071808), (2560, 7819564), (2945, 6797312), (3040, 6584896), (3319, 6031360), (3968, 5044880), (4712, 4248320), (4864, 4115560), (4960, 4035904), (5120, 3909782), (5890, 3398656), (6080, 3292448), (6638, 3015680), (7936, 2522440), (9424, 2124160), (9728, 2057780), (9920, 2017952), (10240, 1954891), (11780, 1699328), (12160, 1646224), (13276, 1507840), (15872, 1261220), (16595, 1206272), (18848, 1062080), (19456, 1028890), (19840, 1008976), (23560, 849664), (24320, 823112), (26552, 753920), (31744, 630610), (33190, 603136), (37696, 531040), (38912, 514445), (39680, 504488), (47120, 424832), (48640, 411556), (53104, 376960), (63061, 317440), (63488, 315305), (66380, 301568), (75392, 265520), (79360, 252244), (94240, 212416), (97280, 205778), (102889, 194560), (106208, 188480), (126122, 158720), (132760, 150784)]