65981968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2129}}^1$

素因数の和:2299

約数の個数: 40

約数和(自身を含む): 138663000

約数和(自身を除く): 72681032

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 149, 208, 298, 596, 1192, 1937, 2129, 2384, 3874, 4258, 7748, 8516, 15496, 17032, 27677, 30992, 34064, 55354, 110708, 221416, 317221, 442832, 634442, 1268884, 2537768, 4123873, 5075536, 8247746, 16495492, 32990984, 65981968]

約数ペア:

[(1, 65981968), (2, 32990984), (4, 16495492), (8, 8247746), (13, 5075536), (16, 4123873), (26, 2537768), (52, 1268884), (104, 634442), (149, 442832), (208, 317221), (298, 221416), (596, 110708), (1192, 55354), (1937, 34064), (2129, 30992), (2384, 27677), (3874, 17032), (4258, 15496), (7748, 8516)]