409800920

素因数分解:

$2^3\times 5^1\times {\mathrm{10245023}}^1$

素因数の和:10245034

約数の個数: 16

約数和(自身を含む): 922052160

約数和(自身を除く): 512251240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10245023, 20490046, 40980092, 51225115, 81960184, 102450230, 204900460, 409800920]

約数ペア:

[(1, 409800920), (2, 204900460), (4, 102450230), (5, 81960184), (8, 51225115), (10, 40980092), (20, 20490046), (40, 10245023)]