287510180

素因数分解:

$2^2\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{7213}}^1$

素因数の和:9215

約数の個数: 24

約数和(自身を含む): 604158072

約数和(自身を除く): 316647892

約数列:

[1, 2, 4, 5, 10, 20, 1993, 3986, 7213, 7972, 9965, 14426, 19930, 28852, 36065, 39860, 72130, 144260, 14375509, 28751018, 57502036, 71877545, 143755090, 287510180]

約数ペア:

[(1, 287510180), (2, 143755090), (4, 71877545), (5, 57502036), (10, 28751018), (20, 14375509), (1993, 144260), (3986, 72130), (7213, 39860), (7972, 36065), (9965, 28852), (14426, 19930)]