31522360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{12919}}^1$

素因数の和:12991

約数の個数: 32

約数和(自身を含む): 72093600

約数和(自身を除く): 40571240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 12919, 25838, 51676, 64595, 103352, 129190, 258380, 516760, 788059, 1576118, 3152236, 3940295, 6304472, 7880590, 15761180, 31522360]

約数ペア:

[(1, 31522360), (2, 15761180), (4, 7880590), (5, 6304472), (8, 3940295), (10, 3152236), (20, 1576118), (40, 788059), (61, 516760), (122, 258380), (244, 129190), (305, 103352), (488, 64595), (610, 51676), (1220, 25838), (2440, 12919)]