686137790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5277983}}^1$

素因数の和:5278003

約数の個数: 16

約数和(自身を含む): 1330051968

約数和(自身を除く): 643914178

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 5277983, 10555966, 26389915, 52779830, 68613779, 137227558, 343068895, 686137790]

約数ペア:

[(1, 686137790), (2, 343068895), (5, 137227558), (10, 68613779), (13, 52779830), (26, 26389915), (65, 10555966), (130, 5277983)]