18745278890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{977}}^1\times {\mathrm{11353}}^1$

素因数の和:12363

約数の個数: 48

約数和(自身を含む): 36577274328

約数和(自身を除く): 17831995438

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 977, 1690, 1954, 4885, 9770, 11353, 12701, 22706, 25402, 56765, 63505, 113530, 127010, 147589, 165113, 295178, 330226, 737945, 825565, 1475890, 1651130, 1918657, 3837314, 9593285, 11091881, 19186570, 22183762, 55459405, 110918810, 144194453, 288388906, 720972265, 1441944530, 1874527889, 3749055778, 9372639445, 18745278890]

約数ペア:

[(1, 18745278890), (2, 9372639445), (5, 3749055778), (10, 1874527889), (13, 1441944530), (26, 720972265), (65, 288388906), (130, 144194453), (169, 110918810), (338, 55459405), (845, 22183762), (977, 19186570), (1690, 11091881), (1954, 9593285), (4885, 3837314), (9770, 1918657), (11353, 1651130), (12701, 1475890), (22706, 825565), (25402, 737945), (56765, 330226), (63505, 295178), (113530, 165113), (127010, 147589)]