128628240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41227}}^1$

素因数の和:41256

約数の個数: 80

約数和(自身を含む): 429430848

約数和(自身を除く): 300802608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 41227, 82454, 123681, 164908, 206135, 247362, 329816, 412270, 494724, 535951, 618405, 659632, 824540, 989448, 1071902, 1236810, 1607853, 1649080, 1978896, 2143804, 2473620, 2679755, 3215706, 3298160, 4287608, 4947240, 5359510, 6431412, 8039265, 8575216, 9894480, 10719020, 12862824, 16078530, 21438040, 25725648, 32157060, 42876080, 64314120, 128628240]

約数ペア:

[(1, 128628240), (2, 64314120), (3, 42876080), (4, 32157060), (5, 25725648), (6, 21438040), (8, 16078530), (10, 12862824), (12, 10719020), (13, 9894480), (15, 8575216), (16, 8039265), (20, 6431412), (24, 5359510), (26, 4947240), (30, 4287608), (39, 3298160), (40, 3215706), (48, 2679755), (52, 2473620), (60, 2143804), (65, 1978896), (78, 1649080), (80, 1607853), (104, 1236810), (120, 1071902), (130, 989448), (156, 824540), (195, 659632), (208, 618405), (240, 535951), (260, 494724), (312, 412270), (390, 329816), (520, 247362), (624, 206135), (780, 164908), (1040, 123681), (1560, 82454), (3120, 41227)]