1900402540

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1557707}}^1$

素因数の和:1557777

約数の個数: 24

約数和(自身を含む): 4056271632

約数和(自身を除く): 2155869092

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1557707, 3115414, 6230828, 7788535, 15577070, 31154140, 95020127, 190040254, 380080508, 475100635, 950201270, 1900402540]

約数ペア:

[(1, 1900402540), (2, 950201270), (4, 475100635), (5, 380080508), (10, 190040254), (20, 95020127), (61, 31154140), (122, 15577070), (244, 7788535), (305, 6230828), (610, 3115414), (1220, 1557707)]