13171640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 64

約数和(自身を含む): 31449600

約数和(自身を除く): 18277960

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 103, 115, 139, 184, 206, 230, 278, 412, 460, 515, 556, 695, 824, 920, 1030, 1112, 1390, 2060, 2369, 2780, 3197, 4120, 4738, 5560, 6394, 9476, 11845, 12788, 14317, 15985, 18952, 23690, 25576, 28634, 31970, 47380, 57268, 63940, 71585, 94760, 114536, 127880, 143170, 286340, 329291, 572680, 658582, 1317164, 1646455, 2634328, 3292910, 6585820, 13171640]

約数ペア:

[(1, 13171640), (2, 6585820), (4, 3292910), (5, 2634328), (8, 1646455), (10, 1317164), (20, 658582), (23, 572680), (40, 329291), (46, 286340), (92, 143170), (103, 127880), (115, 114536), (139, 94760), (184, 71585), (206, 63940), (230, 57268), (278, 47380), (412, 31970), (460, 28634), (515, 25576), (556, 23690), (695, 18952), (824, 15985), (920, 14317), (1030, 12788), (1112, 11845), (1390, 9476), (2060, 6394), (2369, 5560), (2780, 4738), (3197, 4120)]