387473840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19609}}^1$

素因数の和:19654

約数の個数: 80

約数和(自身を含む): 1021288800

約数和(自身を除く): 633814960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 4940, 9880, 19609, 19760, 39218, 78436, 98045, 156872, 196090, 254917, 313744, 372571, 392180, 509834, 745142, 784360, 1019668, 1274585, 1490284, 1568720, 1862855, 2039336, 2549170, 2980568, 3725710, 4078672, 4843423, 5098340, 5961136, 7451420, 9686846, 10196680, 14902840, 19373692, 20393360, 24217115, 29805680, 38747384, 48434230, 77494768, 96868460, 193736920, 387473840]

約数ペア:

[(1, 387473840), (2, 193736920), (4, 96868460), (5, 77494768), (8, 48434230), (10, 38747384), (13, 29805680), (16, 24217115), (19, 20393360), (20, 19373692), (26, 14902840), (38, 10196680), (40, 9686846), (52, 7451420), (65, 5961136), (76, 5098340), (80, 4843423), (95, 4078672), (104, 3725710), (130, 2980568), (152, 2549170), (190, 2039336), (208, 1862855), (247, 1568720), (260, 1490284), (304, 1274585), (380, 1019668), (494, 784360), (520, 745142), (760, 509834), (988, 392180), (1040, 372571), (1235, 313744), (1520, 254917), (1976, 196090), (2470, 156872), (3952, 98045), (4940, 78436), (9880, 39218), (19609, 19760)]