31380280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^2\times {\mathrm{1483}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 73858680

約数和(自身を除く): 42478400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 529, 920, 1058, 1483, 2116, 2645, 2966, 4232, 5290, 5932, 7415, 10580, 11864, 14830, 21160, 29660, 34109, 59320, 68218, 136436, 170545, 272872, 341090, 682180, 784507, 1364360, 1569014, 3138028, 3922535, 6276056, 7845070, 15690140, 31380280]

約数ペア:

[(1, 31380280), (2, 15690140), (4, 7845070), (5, 6276056), (8, 3922535), (10, 3138028), (20, 1569014), (23, 1364360), (40, 784507), (46, 682180), (92, 341090), (115, 272872), (184, 170545), (230, 136436), (460, 68218), (529, 59320), (920, 34109), (1058, 29660), (1483, 21160), (2116, 14830), (2645, 11864), (2966, 10580), (4232, 7415), (5290, 5932)]