72728890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{32909}}^1$

素因数の和:32946

約数の個数: 32

約数和(自身を含む): 149279760

約数和(自身を除く): 76550870

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 32909, 65818, 164545, 329090, 427817, 559453, 855634, 1118906, 2139085, 2797265, 4278170, 5594530, 7272889, 14545778, 36364445, 72728890]

約数ペア:

[(1, 72728890), (2, 36364445), (5, 14545778), (10, 7272889), (13, 5594530), (17, 4278170), (26, 2797265), (34, 2139085), (65, 1118906), (85, 855634), (130, 559453), (170, 427817), (221, 329090), (442, 164545), (1105, 65818), (2210, 32909)]