31178810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{971}}^1$

素因数の和:1023

約数の個数: 48

約数和(自身を含む): 64035360

約数和(自身を除く): 32856550

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 169, 190, 247, 338, 494, 845, 971, 1235, 1690, 1942, 2470, 3211, 4855, 6422, 9710, 12623, 16055, 18449, 25246, 32110, 36898, 63115, 92245, 126230, 164099, 184490, 239837, 328198, 479674, 820495, 1199185, 1640990, 2398370, 3117881, 6235762, 15589405, 31178810]

約数ペア:

[(1, 31178810), (2, 15589405), (5, 6235762), (10, 3117881), (13, 2398370), (19, 1640990), (26, 1199185), (38, 820495), (65, 479674), (95, 328198), (130, 239837), (169, 184490), (190, 164099), (247, 126230), (338, 92245), (494, 63115), (845, 36898), (971, 32110), (1235, 25246), (1690, 18449), (1942, 16055), (2470, 12623), (3211, 9710), (4855, 6422)]