69888880

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{28181}}^1$

素因数の和:28225

約数の個数: 40

約数和(自身を含む): 167739264

約数和(自身を除く): 97850384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 28181, 56362, 112724, 140905, 225448, 281810, 450896, 563620, 873611, 1127240, 1747222, 2254480, 3494444, 4368055, 6988888, 8736110, 13977776, 17472220, 34944440, 69888880]

約数ペア:

[(1, 69888880), (2, 34944440), (4, 17472220), (5, 13977776), (8, 8736110), (10, 6988888), (16, 4368055), (20, 3494444), (31, 2254480), (40, 1747222), (62, 1127240), (80, 873611), (124, 563620), (155, 450896), (248, 281810), (310, 225448), (496, 140905), (620, 112724), (1240, 56362), (2480, 28181)]