51434890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12763}}^1$

素因数の和:12814

約数の個数: 32

約数和(自身を含む): 102928896

約数和(自身を除く): 51494006

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 12763, 25526, 63815, 127630, 165919, 331838, 395653, 791306, 829595, 1659190, 1978265, 3956530, 5143489, 10286978, 25717445, 51434890]

約数ペア:

[(1, 51434890), (2, 25717445), (5, 10286978), (10, 5143489), (13, 3956530), (26, 1978265), (31, 1659190), (62, 829595), (65, 791306), (130, 395653), (155, 331838), (310, 165919), (403, 127630), (806, 63815), (2015, 25526), (4030, 12763)]