491442009488

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{990810503}}^1$

素因数の和:990810542

約数の個数: 20

約数和(自身を含む): 982884019968

約数和(自身を除く): 491442010480

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 990810503, 1981621006, 3963242012, 7926484024, 15852968048, 30715125593, 61430251186, 122860502372, 245721004744, 491442009488]

約数ペア:

[(1, 491442009488), (2, 245721004744), (4, 122860502372), (8, 61430251186), (16, 30715125593), (31, 15852968048), (62, 7926484024), (124, 3963242012), (248, 1981621006), (496, 990810503)]