561406540

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{1129}}^1$

素因数の和:1231

約数の個数: 72

約数和(自身を含む): 1259778240

約数和(自身を除く): 698371700

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 47, 92, 94, 115, 188, 230, 235, 460, 470, 529, 940, 1058, 1081, 1129, 2116, 2162, 2258, 2645, 4324, 4516, 5290, 5405, 5645, 10580, 10810, 11290, 21620, 22580, 24863, 25967, 49726, 51934, 53063, 99452, 103868, 106126, 124315, 129835, 212252, 248630, 259670, 265315, 497260, 519340, 530630, 597241, 1061260, 1194482, 1220449, 2388964, 2440898, 2986205, 4881796, 5972410, 6102245, 11944820, 12204490, 24408980, 28070327, 56140654, 112281308, 140351635, 280703270, 561406540]

約数ペア:

[(1, 561406540), (2, 280703270), (4, 140351635), (5, 112281308), (10, 56140654), (20, 28070327), (23, 24408980), (46, 12204490), (47, 11944820), (92, 6102245), (94, 5972410), (115, 4881796), (188, 2986205), (230, 2440898), (235, 2388964), (460, 1220449), (470, 1194482), (529, 1061260), (940, 597241), (1058, 530630), (1081, 519340), (1129, 497260), (2116, 265315), (2162, 259670), (2258, 248630), (2645, 212252), (4324, 129835), (4516, 124315), (5290, 106126), (5405, 103868), (5645, 99452), (10580, 53063), (10810, 51934), (11290, 49726), (21620, 25967), (22580, 24863)]