18754060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4243}}^1$

素因数の和:4282

約数の個数: 48

約数和(自身を含む): 44918496

約数和(自身を除く): 26164436

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4243, 4420, 8486, 16972, 21215, 42430, 55159, 72131, 84860, 110318, 144262, 220636, 275795, 288524, 360655, 551590, 721310, 937703, 1103180, 1442620, 1875406, 3750812, 4688515, 9377030, 18754060]

約数ペア:

[(1, 18754060), (2, 9377030), (4, 4688515), (5, 3750812), (10, 1875406), (13, 1442620), (17, 1103180), (20, 937703), (26, 721310), (34, 551590), (52, 360655), (65, 288524), (68, 275795), (85, 220636), (130, 144262), (170, 110318), (221, 84860), (260, 72131), (340, 55159), (442, 42430), (884, 21215), (1105, 16972), (2210, 8486), (4243, 4420)]