25157470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{449}}^1$

素因数の和:900

約数の個数: 32

約数和(自身を含む): 48988800

約数和(自身を除く): 23831330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 431, 449, 862, 898, 2155, 2245, 4310, 4490, 5603, 5837, 11206, 11674, 28015, 29185, 56030, 58370, 193519, 387038, 967595, 1935190, 2515747, 5031494, 12578735, 25157470]

約数ペア:

[(1, 25157470), (2, 12578735), (5, 5031494), (10, 2515747), (13, 1935190), (26, 967595), (65, 387038), (130, 193519), (431, 58370), (449, 56030), (862, 29185), (898, 28015), (2155, 11674), (2245, 11206), (4310, 5837), (4490, 5603)]