409748420

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{443}}^1\times {\mathrm{449}}^1$

素因数の和:1004

約数の個数: 48

約数和(自身を含む): 872726400

約数和(自身を除く): 462977980

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 443, 449, 515, 886, 898, 1030, 1772, 1796, 2060, 2215, 2245, 4430, 4490, 8860, 8980, 45629, 46247, 91258, 92494, 182516, 184988, 198907, 228145, 231235, 397814, 456290, 462470, 795628, 912580, 924940, 994535, 1989070, 3978140, 20487421, 40974842, 81949684, 102437105, 204874210, 409748420]

約数ペア:

[(1, 409748420), (2, 204874210), (4, 102437105), (5, 81949684), (10, 40974842), (20, 20487421), (103, 3978140), (206, 1989070), (412, 994535), (443, 924940), (449, 912580), (515, 795628), (886, 462470), (898, 456290), (1030, 397814), (1772, 231235), (1796, 228145), (2060, 198907), (2215, 184988), (2245, 182516), (4430, 92494), (4490, 91258), (8860, 46247), (8980, 45629)]