3138920

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{809}}^1$

素因数の和:917

約数の個数: 32

約数和(自身を含む): 7144200

約数和(自身を除く): 4005280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 809, 970, 1618, 1940, 3236, 3880, 4045, 6472, 8090, 16180, 32360, 78473, 156946, 313892, 392365, 627784, 784730, 1569460, 3138920]

約数ペア:

[(1, 3138920), (2, 1569460), (4, 784730), (5, 627784), (8, 392365), (10, 313892), (20, 156946), (40, 78473), (97, 32360), (194, 16180), (388, 8090), (485, 6472), (776, 4045), (809, 3880), (970, 3236), (1618, 1940)]