254732140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{971}}^1\times {\mathrm{1009}}^1$

素因数の和:2002

約数の個数: 48

約数和(自身を含む): 577251360

約数和(自身を除く): 322519220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 971, 1009, 1942, 2018, 3884, 4036, 4855, 5045, 9710, 10090, 12623, 13117, 19420, 20180, 25246, 26234, 50492, 52468, 63115, 65585, 126230, 131170, 252460, 262340, 979739, 1959478, 3918956, 4898695, 9797390, 12736607, 19594780, 25473214, 50946428, 63683035, 127366070, 254732140]

約数ペア:

[(1, 254732140), (2, 127366070), (4, 63683035), (5, 50946428), (10, 25473214), (13, 19594780), (20, 12736607), (26, 9797390), (52, 4898695), (65, 3918956), (130, 1959478), (260, 979739), (971, 262340), (1009, 252460), (1942, 131170), (2018, 126230), (3884, 65585), (4036, 63115), (4855, 52468), (5045, 50492), (9710, 26234), (10090, 25246), (12623, 20180), (13117, 19420)]