31197140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1237}}^1$

素因数の和:1356

約数の個数: 48

約数和(自身を含む): 71338512

約数和(自身を除く): 40141372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1237, 1261, 1940, 2474, 2522, 4948, 5044, 6185, 6305, 12370, 12610, 16081, 24740, 25220, 32162, 64324, 80405, 119989, 160810, 239978, 321620, 479956, 599945, 1199890, 1559857, 2399780, 3119714, 6239428, 7799285, 15598570, 31197140]

約数ペア:

[(1, 31197140), (2, 15598570), (4, 7799285), (5, 6239428), (10, 3119714), (13, 2399780), (20, 1559857), (26, 1199890), (52, 599945), (65, 479956), (97, 321620), (130, 239978), (194, 160810), (260, 119989), (388, 80405), (485, 64324), (970, 32162), (1237, 25220), (1261, 24740), (1940, 16081), (2474, 12610), (2522, 12370), (4948, 6305), (5044, 6185)]