18789440

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{827}}^1$

素因数の和:915

約数の個数: 56

約数和(自身を含む): 45427392

約数和(自身を除く): 26637952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 827, 1136, 1420, 1654, 2272, 2840, 3308, 4135, 4544, 5680, 6616, 8270, 11360, 13232, 16540, 22720, 26464, 33080, 52928, 58717, 66160, 117434, 132320, 234868, 264640, 293585, 469736, 587170, 939472, 1174340, 1878944, 2348680, 3757888, 4697360, 9394720, 18789440]

約数ペア:

[(1, 18789440), (2, 9394720), (4, 4697360), (5, 3757888), (8, 2348680), (10, 1878944), (16, 1174340), (20, 939472), (32, 587170), (40, 469736), (64, 293585), (71, 264640), (80, 234868), (142, 132320), (160, 117434), (284, 66160), (320, 58717), (355, 52928), (568, 33080), (710, 26464), (827, 22720), (1136, 16540), (1420, 13232), (1654, 11360), (2272, 8270), (2840, 6616), (3308, 5680), (4135, 4544)]