215910040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{174121}}^1$

素因数の和:174163

約数の個数: 32

約数和(自身を含む): 501471360

約数和(自身を除く): 285561320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 174121, 348242, 696484, 870605, 1392968, 1741210, 3482420, 5397751, 6964840, 10795502, 21591004, 26988755, 43182008, 53977510, 107955020, 215910040]

約数ペア:

[(1, 215910040), (2, 107955020), (4, 53977510), (5, 43182008), (8, 26988755), (10, 21591004), (20, 10795502), (31, 6964840), (40, 5397751), (62, 3482420), (124, 1741210), (155, 1392968), (248, 870605), (310, 696484), (620, 348242), (1240, 174121)]