640001016

素因数分解:

$2^3\times 3^2\times {\mathrm{19}}^2\times {\mathrm{24623}}^1$

素因数の和:24673

約数の個数: 72

約数和(自身を含む): 1829440080

約数和(自身を除く): 1189439064

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 36, 38, 57, 72, 76, 114, 152, 171, 228, 342, 361, 456, 684, 722, 1083, 1368, 1444, 2166, 2888, 3249, 4332, 6498, 8664, 12996, 24623, 25992, 49246, 73869, 98492, 147738, 196984, 221607, 295476, 443214, 467837, 590952, 886428, 935674, 1403511, 1772856, 1871348, 2807022, 3742696, 4210533, 5614044, 8421066, 8888903, 11228088, 16842132, 17777806, 26666709, 33684264, 35555612, 53333418, 71111224, 80000127, 106666836, 160000254, 213333672, 320000508, 640001016]

約数ペア:

[(1, 640001016), (2, 320000508), (3, 213333672), (4, 160000254), (6, 106666836), (8, 80000127), (9, 71111224), (12, 53333418), (18, 35555612), (19, 33684264), (24, 26666709), (36, 17777806), (38, 16842132), (57, 11228088), (72, 8888903), (76, 8421066), (114, 5614044), (152, 4210533), (171, 3742696), (228, 2807022), (342, 1871348), (361, 1772856), (456, 1403511), (684, 935674), (722, 886428), (1083, 590952), (1368, 467837), (1444, 443214), (2166, 295476), (2888, 221607), (3249, 196984), (4332, 147738), (6498, 98492), (8664, 73869), (12996, 49246), (24623, 25992)]