251101816

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:572

約数の個数: 64

約数和(自身を含む): 549504000

約数和(自身を除く): 298402184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 211, 269, 316, 422, 538, 553, 632, 844, 1076, 1106, 1477, 1688, 1883, 2152, 2212, 2954, 3766, 4424, 5908, 7532, 11816, 15064, 16669, 21251, 33338, 42502, 56759, 66676, 85004, 113518, 116683, 133352, 148757, 170008, 227036, 233366, 297514, 397313, 454072, 466732, 595028, 794626, 933464, 1190056, 1589252, 3178504, 4483961, 8967922, 17935844, 31387727, 35871688, 62775454, 125550908, 251101816]

約数ペア:

[(1, 251101816), (2, 125550908), (4, 62775454), (7, 35871688), (8, 31387727), (14, 17935844), (28, 8967922), (56, 4483961), (79, 3178504), (158, 1589252), (211, 1190056), (269, 933464), (316, 794626), (422, 595028), (538, 466732), (553, 454072), (632, 397313), (844, 297514), (1076, 233366), (1106, 227036), (1477, 170008), (1688, 148757), (1883, 133352), (2152, 116683), (2212, 113518), (2954, 85004), (3766, 66676), (4424, 56759), (5908, 42502), (7532, 33338), (11816, 21251), (15064, 16669)]