15488840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12491}}^1$

素因数の和:12533

約数の個数: 32

約数和(自身を含む): 35976960

約数和(自身を除く): 20488120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12491, 24982, 49964, 62455, 99928, 124910, 249820, 387221, 499640, 774442, 1548884, 1936105, 3097768, 3872210, 7744420, 15488840]

約数ペア:

[(1, 15488840), (2, 7744420), (4, 3872210), (5, 3097768), (8, 1936105), (10, 1548884), (20, 774442), (31, 499640), (40, 387221), (62, 249820), (124, 124910), (155, 99928), (248, 62455), (310, 49964), (620, 24982), (1240, 12491)]