61994440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{11831}}^1$

素因数の和:11973

約数の個数: 32

約数和(自身を含む): 140564160

約数和(自身を除く): 78569720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 11831, 23662, 47324, 59155, 94648, 118310, 236620, 473240, 1549861, 3099722, 6199444, 7749305, 12398888, 15498610, 30997220, 61994440]

約数ペア:

[(1, 61994440), (2, 30997220), (4, 15498610), (5, 12398888), (8, 7749305), (10, 6199444), (20, 3099722), (40, 1549861), (131, 473240), (262, 236620), (524, 118310), (655, 94648), (1048, 59155), (1310, 47324), (2620, 23662), (5240, 11831)]