420032020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{677471}}^1$

素因数の和:677511

約数の個数: 24

約数和(自身を含む): 910522368

約数和(自身を除く): 490490348

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 677471, 1354942, 2709884, 3387355, 6774710, 13549420, 21001601, 42003202, 84006404, 105008005, 210016010, 420032020]

約数ペア:

[(1, 420032020), (2, 210016010), (4, 105008005), (5, 84006404), (10, 42003202), (20, 21001601), (31, 13549420), (62, 6774710), (124, 3387355), (155, 2709884), (310, 1354942), (620, 677471)]