87697220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19841}}^1$

素因数の和:19880

約数の個数: 48

約数和(自身を含む): 210007728

約数和(自身を除く): 122310508

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, 4420, 19841, 39682, 79364, 99205, 198410, 257933, 337297, 396820, 515866, 674594, 1031732, 1289665, 1349188, 1686485, 2579330, 3372970, 4384861, 5158660, 6745940, 8769722, 17539444, 21924305, 43848610, 87697220]

約数ペア:

[(1, 87697220), (2, 43848610), (4, 21924305), (5, 17539444), (10, 8769722), (13, 6745940), (17, 5158660), (20, 4384861), (26, 3372970), (34, 2579330), (52, 1686485), (65, 1349188), (68, 1289665), (85, 1031732), (130, 674594), (170, 515866), (221, 396820), (260, 337297), (340, 257933), (442, 198410), (884, 99205), (1105, 79364), (2210, 39682), (4420, 19841)]