12645620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2861}}^1$

素因数の和:2900

約数の個数: 48

約数和(自身を含む): 30291408

約数和(自身を除く): 17645788

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, 2861, 4420, 5722, 11444, 14305, 28610, 37193, 48637, 57220, 74386, 97274, 148772, 185965, 194548, 243185, 371930, 486370, 632281, 743860, 972740, 1264562, 2529124, 3161405, 6322810, 12645620]

約数ペア:

[(1, 12645620), (2, 6322810), (4, 3161405), (5, 2529124), (10, 1264562), (13, 972740), (17, 743860), (20, 632281), (26, 486370), (34, 371930), (52, 243185), (65, 194548), (68, 185965), (85, 148772), (130, 97274), (170, 74386), (221, 57220), (260, 48637), (340, 37193), (442, 28610), (884, 14305), (1105, 11444), (2210, 5722), (2861, 4420)]