78402640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{57649}}^1$

素因数の和:57679

約数の個数: 40

約数和(自身を含む): 193012200

約数和(自身を除く): 114609560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 57649, 115298, 230596, 288245, 461192, 576490, 922384, 980033, 1152980, 1960066, 2305960, 3920132, 4611920, 4900165, 7840264, 9800330, 15680528, 19600660, 39201320, 78402640]

約数ペア:

[(1, 78402640), (2, 39201320), (4, 19600660), (5, 15680528), (8, 9800330), (10, 7840264), (16, 4900165), (17, 4611920), (20, 3920132), (34, 2305960), (40, 1960066), (68, 1152980), (80, 980033), (85, 922384), (136, 576490), (170, 461192), (272, 288245), (340, 230596), (680, 115298), (1360, 57649)]