12961390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{557}}^1$

素因数の和:756

約数の個数: 32

約数和(自身を含む): 25310880

約数和(自身を除く): 12349490

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 179, 358, 557, 895, 1114, 1790, 2327, 2785, 4654, 5570, 7241, 11635, 14482, 23270, 36205, 72410, 99703, 199406, 498515, 997030, 1296139, 2592278, 6480695, 12961390]

約数ペア:

[(1, 12961390), (2, 6480695), (5, 2592278), (10, 1296139), (13, 997030), (26, 498515), (65, 199406), (130, 99703), (179, 72410), (358, 36205), (557, 23270), (895, 14482), (1114, 11635), (1790, 7241), (2327, 5570), (2785, 4654)]