51717780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{287321}}^1$

素因数の和:287336

約数の個数: 36

約数和(自身を含む): 156877812

約数和(自身を除く): 105160032

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 287321, 574642, 861963, 1149284, 1436605, 1723926, 2585889, 2873210, 3447852, 4309815, 5171778, 5746420, 8619630, 10343556, 12929445, 17239260, 25858890, 51717780]

約数ペア:

[(1, 51717780), (2, 25858890), (3, 17239260), (4, 12929445), (5, 10343556), (6, 8619630), (9, 5746420), (10, 5171778), (12, 4309815), (15, 3447852), (18, 2873210), (20, 2585889), (30, 1723926), (36, 1436605), (45, 1149284), (60, 861963), (90, 574642), (180, 287321)]