639235696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{10061}}^1$

素因数の和:10118

約数の個数: 60

約数和(自身を含む): 1426107384

約数和(自身を除く): 786871688

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 361, 418, 722, 836, 1444, 1672, 2888, 3344, 3971, 5776, 7942, 10061, 15884, 20122, 31768, 40244, 63536, 80488, 110671, 160976, 191159, 221342, 382318, 442684, 764636, 885368, 1529272, 1770736, 2102749, 3058544, 3632021, 4205498, 7264042, 8410996, 14528084, 16821992, 29056168, 33643984, 39952231, 58112336, 79904462, 159808924, 319617848, 639235696]

約数ペア:

[(1, 639235696), (2, 319617848), (4, 159808924), (8, 79904462), (11, 58112336), (16, 39952231), (19, 33643984), (22, 29056168), (38, 16821992), (44, 14528084), (76, 8410996), (88, 7264042), (152, 4205498), (176, 3632021), (209, 3058544), (304, 2102749), (361, 1770736), (418, 1529272), (722, 885368), (836, 764636), (1444, 442684), (1672, 382318), (2888, 221342), (3344, 191159), (3971, 160976), (5776, 110671), (7942, 80488), (10061, 63536), (15884, 40244), (20122, 31768)]