25311130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:931

約数の個数: 48

約数和(自身を含む): 52295544

約数和(自身を除く): 26984414

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 845, 881, 1105, 1690, 1762, 2210, 2873, 4405, 5746, 8810, 11453, 14365, 14977, 22906, 28730, 29954, 57265, 74885, 114530, 148889, 149770, 194701, 297778, 389402, 744445, 973505, 1488890, 1947010, 2531113, 5062226, 12655565, 25311130]

約数ペア:

[(1, 25311130), (2, 12655565), (5, 5062226), (10, 2531113), (13, 1947010), (17, 1488890), (26, 973505), (34, 744445), (65, 389402), (85, 297778), (130, 194701), (169, 149770), (170, 148889), (221, 114530), (338, 74885), (442, 57265), (845, 29954), (881, 28730), (1105, 22906), (1690, 14977), (1762, 14365), (2210, 11453), (2873, 8810), (4405, 5746)]