420046840

素因数分解:

$2^3\times 5^1\times {\mathrm{10501171}}^1$

素因数の和:10501182

約数の個数: 16

約数和(自身を含む): 945105480

約数和(自身を除く): 525058640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10501171, 21002342, 42004684, 52505855, 84009368, 105011710, 210023420, 420046840]

約数ペア:

[(1, 420046840), (2, 210023420), (4, 105011710), (5, 84009368), (8, 52505855), (10, 42004684), (20, 21002342), (40, 10501171)]