90186440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{283}}^1$

素因数の和:582

約数の個数: 64

約数和(自身を含む): 211023360

約数和(自身を除く): 120836920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 257, 283, 310, 514, 566, 620, 1028, 1132, 1240, 1285, 1415, 2056, 2264, 2570, 2830, 5140, 5660, 7967, 8773, 10280, 11320, 15934, 17546, 31868, 35092, 39835, 43865, 63736, 70184, 72731, 79670, 87730, 145462, 159340, 175460, 290924, 318680, 350920, 363655, 581848, 727310, 1454620, 2254661, 2909240, 4509322, 9018644, 11273305, 18037288, 22546610, 45093220, 90186440]

約数ペア:

[(1, 90186440), (2, 45093220), (4, 22546610), (5, 18037288), (8, 11273305), (10, 9018644), (20, 4509322), (31, 2909240), (40, 2254661), (62, 1454620), (124, 727310), (155, 581848), (248, 363655), (257, 350920), (283, 318680), (310, 290924), (514, 175460), (566, 159340), (620, 145462), (1028, 87730), (1132, 79670), (1240, 72731), (1285, 70184), (1415, 63736), (2056, 43865), (2264, 39835), (2570, 35092), (2830, 31868), (5140, 17546), (5660, 15934), (7967, 11320), (8773, 10280)]