68890120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{7793}}^1$

素因数の和:7834

約数の個数: 64

約数和(自身を含む): 176767920

約数和(自身を除く): 107877800

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 4420, 7793, 8840, 15586, 31172, 38965, 62344, 77930, 101309, 132481, 155860, 202618, 264962, 311720, 405236, 506545, 529924, 662405, 810472, 1013090, 1059848, 1324810, 1722253, 2026180, 2649620, 3444506, 4052360, 5299240, 6889012, 8611265, 13778024, 17222530, 34445060, 68890120]

約数ペア:

[(1, 68890120), (2, 34445060), (4, 17222530), (5, 13778024), (8, 8611265), (10, 6889012), (13, 5299240), (17, 4052360), (20, 3444506), (26, 2649620), (34, 2026180), (40, 1722253), (52, 1324810), (65, 1059848), (68, 1013090), (85, 810472), (104, 662405), (130, 529924), (136, 506545), (170, 405236), (221, 311720), (260, 264962), (340, 202618), (442, 155860), (520, 132481), (680, 101309), (884, 77930), (1105, 62344), (1768, 38965), (2210, 31172), (4420, 15586), (7793, 8840)]