81538860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{104537}}^1$

素因数の和:104562

約数の個数: 48

約数和(自身を含む): 245873376

約数和(自身を除く): 164334516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 104537, 209074, 313611, 418148, 522685, 627222, 1045370, 1254444, 1358981, 1568055, 2090740, 2717962, 3136110, 4076943, 5435924, 6272220, 6794905, 8153886, 13589810, 16307772, 20384715, 27179620, 40769430, 81538860]

約数ペア:

[(1, 81538860), (2, 40769430), (3, 27179620), (4, 20384715), (5, 16307772), (6, 13589810), (10, 8153886), (12, 6794905), (13, 6272220), (15, 5435924), (20, 4076943), (26, 3136110), (30, 2717962), (39, 2090740), (52, 1568055), (60, 1358981), (65, 1254444), (78, 1045370), (130, 627222), (156, 522685), (195, 418148), (260, 313611), (390, 209074), (780, 104537)]