20163665680

素因数分解:

$2^4\times 5^1\times {\mathrm{2099}}^1\times {\mathrm{120079}}^1$

素因数の和:122191

約数の個数: 40

約数和(自身を含む): 46903248000

約数和(自身を除く): 26739582320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2099, 4198, 8396, 10495, 16792, 20990, 33584, 41980, 83960, 120079, 167920, 240158, 480316, 600395, 960632, 1200790, 1921264, 2401580, 4803160, 9606320, 252045821, 504091642, 1008183284, 1260229105, 2016366568, 2520458210, 4032733136, 5040916420, 10081832840, 20163665680]

約数ペア:

[(1, 20163665680), (2, 10081832840), (4, 5040916420), (5, 4032733136), (8, 2520458210), (10, 2016366568), (16, 1260229105), (20, 1008183284), (40, 504091642), (80, 252045821), (2099, 9606320), (4198, 4803160), (8396, 2401580), (10495, 1921264), (16792, 1200790), (20990, 960632), (33584, 600395), (41980, 480316), (83960, 240158), (120079, 167920)]