68913260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{1109}}^1$

素因数の和:1370

約数の個数: 48

約数和(自身を含む): 156643200

約数和(自身を除く): 87729940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 956, 1109, 1195, 2218, 2390, 3107, 4436, 4780, 5545, 6214, 11090, 12428, 14417, 15535, 22180, 28834, 31070, 57668, 62140, 72085, 144170, 265051, 288340, 530102, 1060204, 1325255, 2650510, 3445663, 5301020, 6891326, 13782652, 17228315, 34456630, 68913260]

約数ペア:

[(1, 68913260), (2, 34456630), (4, 17228315), (5, 13782652), (10, 6891326), (13, 5301020), (20, 3445663), (26, 2650510), (52, 1325255), (65, 1060204), (130, 530102), (239, 288340), (260, 265051), (478, 144170), (956, 72085), (1109, 62140), (1195, 57668), (2218, 31070), (2390, 28834), (3107, 22180), (4436, 15535), (4780, 14417), (5545, 12428), (6214, 11090)]