620265080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{254207}}^1$

素因数の和:254279

約数の個数: 32

約数和(自身を含む): 1418480640

約数和(自身を除く): 798215560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 254207, 508414, 1016828, 1271035, 2033656, 2542070, 5084140, 10168280, 15506627, 31013254, 62026508, 77533135, 124053016, 155066270, 310132540, 620265080]

約数ペア:

[(1, 620265080), (2, 310132540), (4, 155066270), (5, 124053016), (8, 77533135), (10, 62026508), (20, 31013254), (40, 15506627), (61, 10168280), (122, 5084140), (244, 2542070), (305, 2033656), (488, 1271035), (610, 1016828), (1220, 508414), (2440, 254207)]