420544010

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{108109}}^1$

素因数の和:108505

約数の個数: 16

約数和(自身を含む): 758932200

約数和(自身を除く): 338388190

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 108109, 216218, 540545, 1081090, 42054401, 84108802, 210272005, 420544010]

約数ペア:

[(1, 420544010), (2, 210272005), (5, 84108802), (10, 42054401), (389, 1081090), (778, 540545), (1945, 216218), (3890, 108109)]