18962528

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:679

約数の個数: 48

約数和(自身を含む): 40783680

約数和(自身を除く): 21821152

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 79, 104, 158, 208, 316, 416, 577, 632, 1027, 1154, 1264, 2054, 2308, 2528, 4108, 4616, 7501, 8216, 9232, 15002, 16432, 18464, 30004, 32864, 45583, 60008, 91166, 120016, 182332, 240032, 364664, 592579, 729328, 1185158, 1458656, 2370316, 4740632, 9481264, 18962528]

約数ペア:

[(1, 18962528), (2, 9481264), (4, 4740632), (8, 2370316), (13, 1458656), (16, 1185158), (26, 729328), (32, 592579), (52, 364664), (79, 240032), (104, 182332), (158, 120016), (208, 91166), (316, 60008), (416, 45583), (577, 32864), (632, 30004), (1027, 18464), (1154, 16432), (1264, 15002), (2054, 9232), (2308, 8216), (2528, 7501), (4108, 4616)]