128416475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 184273920

約数和(自身を除く): 55857445

約数列:

[1, 5, 11, 23, 25, 55, 79, 115, 253, 257, 275, 395, 575, 869, 1265, 1285, 1817, 1975, 2827, 4345, 5911, 6325, 6425, 9085, 14135, 19987, 20303, 21725, 29555, 45425, 65021, 70675, 99935, 101515, 147775, 223333, 325105, 466969, 499675, 507575, 1116665, 1625525, 2334845, 5136659, 5583325, 11674225, 25683295, 128416475]

約数ペア:

[(1, 128416475), (5, 25683295), (11, 11674225), (23, 5583325), (25, 5136659), (55, 2334845), (79, 1625525), (115, 1116665), (253, 507575), (257, 499675), (275, 466969), (395, 325105), (575, 223333), (869, 147775), (1265, 101515), (1285, 99935), (1817, 70675), (1975, 65021), (2827, 45425), (4345, 29555), (5911, 21725), (6325, 20303), (6425, 19987), (9085, 14135)]