31508180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{727}}^1$

素因数の和:944

約数の個数: 48

約数和(自身を含む): 72648576

約数和(自身を除く): 41140396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 727, 788, 985, 1454, 1970, 2167, 2908, 3635, 3940, 4334, 7270, 7997, 8668, 10835, 14540, 15994, 21670, 31988, 39985, 43340, 79970, 143219, 159940, 286438, 572876, 716095, 1432190, 1575409, 2864380, 3150818, 6301636, 7877045, 15754090, 31508180]

約数ペア:

[(1, 31508180), (2, 15754090), (4, 7877045), (5, 6301636), (10, 3150818), (11, 2864380), (20, 1575409), (22, 1432190), (44, 716095), (55, 572876), (110, 286438), (197, 159940), (220, 143219), (394, 79970), (727, 43340), (788, 39985), (985, 31988), (1454, 21670), (1970, 15994), (2167, 14540), (2908, 10835), (3635, 8668), (3940, 7997), (4334, 7270)]