28758340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{110609}}^1$

素因数の和:110631

約数の個数: 24

約数和(自身を含む): 65038680

約数和(自身を除く): 36280340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 110609, 221218, 442436, 553045, 1106090, 1437917, 2212180, 2875834, 5751668, 7189585, 14379170, 28758340]

約数ペア:

[(1, 28758340), (2, 14379170), (4, 7189585), (5, 5751668), (10, 2875834), (13, 2212180), (20, 1437917), (26, 1106090), (52, 553045), (65, 442436), (130, 221218), (260, 110609)]