1288973890

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{307631}}^1$

素因数の和:308057

約数の個数: 16

約数和(自身を含む): 2325697920

約数和(自身を除く): 1036724030

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 307631, 615262, 1538155, 3076310, 128897389, 257794778, 644486945, 1288973890]

約数ペア:

[(1, 1288973890), (2, 644486945), (5, 257794778), (10, 128897389), (419, 3076310), (838, 1538155), (2095, 615262), (4190, 307631)]