20559620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^2\times {\mathrm{229}}^1$

素因数の和:372

約数の個数: 36

約数和(自身を含む): 44020620

約数和(自身を除く): 23461000

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 229, 268, 335, 458, 670, 916, 1145, 1340, 2290, 4489, 4580, 8978, 15343, 17956, 22445, 30686, 44890, 61372, 76715, 89780, 153430, 306860, 1027981, 2055962, 4111924, 5139905, 10279810, 20559620]

約数ペア:

[(1, 20559620), (2, 10279810), (4, 5139905), (5, 4111924), (10, 2055962), (20, 1027981), (67, 306860), (134, 153430), (229, 89780), (268, 76715), (335, 61372), (458, 44890), (670, 30686), (916, 22445), (1145, 17956), (1340, 15343), (2290, 8978), (4489, 4580)]