71380965890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{425977}}^1$

素因数の和:427286

約数の個数: 32

約数和(自身を含む): 138476928240

約数和(自身を除く): 67095962350

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1289, 2578, 6445, 12890, 16757, 33514, 83785, 167570, 425977, 851954, 2129885, 4259770, 5537701, 11075402, 27688505, 55377010, 549084353, 1098168706, 2745421765, 5490843530, 7138096589, 14276193178, 35690482945, 71380965890]

約数ペア:

[(1, 71380965890), (2, 35690482945), (5, 14276193178), (10, 7138096589), (13, 5490843530), (26, 2745421765), (65, 1098168706), (130, 549084353), (1289, 55377010), (2578, 27688505), (6445, 11075402), (12890, 5537701), (16757, 4259770), (33514, 2129885), (83785, 851954), (167570, 425977)]