51535240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{21121}}^1$

素因数の和:21193

約数の個数: 32

約数和(自身を含む): 117860760

約数和(自身を除く): 66325520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 21121, 42242, 84484, 105605, 168968, 211210, 422420, 844840, 1288381, 2576762, 5153524, 6441905, 10307048, 12883810, 25767620, 51535240]

約数ペア:

[(1, 51535240), (2, 25767620), (4, 12883810), (5, 10307048), (8, 6441905), (10, 5153524), (20, 2576762), (40, 1288381), (61, 844840), (122, 422420), (244, 211210), (305, 168968), (488, 105605), (610, 84484), (1220, 42242), (2440, 21121)]