31107690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{821}}^1$

素因数の和:1255

約数の個数: 48

約数和(自身を含む): 81170856

約数和(自身を除く): 50063166

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 421, 821, 842, 1263, 1642, 2105, 2463, 2526, 3789, 4105, 4210, 4926, 6315, 7389, 7578, 8210, 12315, 12630, 14778, 18945, 24630, 36945, 37890, 73890, 345641, 691282, 1036923, 1728205, 2073846, 3110769, 3456410, 5184615, 6221538, 10369230, 15553845, 31107690]

約数ペア:

[(1, 31107690), (2, 15553845), (3, 10369230), (5, 6221538), (6, 5184615), (9, 3456410), (10, 3110769), (15, 2073846), (18, 1728205), (30, 1036923), (45, 691282), (90, 345641), (421, 73890), (821, 37890), (842, 36945), (1263, 24630), (1642, 18945), (2105, 14778), (2463, 12630), (2526, 12315), (3789, 8210), (4105, 7578), (4210, 7389), (4926, 6315)]