686425610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{406169}}^1$

素因数の和:406202

約数の個数: 24

約数和(自身を含む): 1337923980

約数和(自身を除く): 651498370

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 406169, 812338, 2030845, 4061690, 5280197, 10560394, 26400985, 52801970, 68642561, 137285122, 343212805, 686425610]

約数ペア:

[(1, 686425610), (2, 343212805), (5, 137285122), (10, 68642561), (13, 52801970), (26, 26400985), (65, 10560394), (130, 5280197), (169, 4061690), (338, 2030845), (845, 812338), (1690, 406169)]