69978890

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{53419}}^1$

素因数の和:53557

約数の個数: 16

約数和(自身を含む): 126925920

約数和(自身を除く): 56947030

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 53419, 106838, 267095, 534190, 6997889, 13995778, 34989445, 69978890]

約数ペア:

[(1, 69978890), (2, 34989445), (5, 13995778), (10, 6997889), (131, 534190), (262, 267095), (655, 106838), (1310, 53419)]