31392020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{293}}^1\times {\mathrm{487}}^1$

素因数の和:800

約数の個数: 48

約数和(自身を含む): 72309888

約数和(自身を除く): 40917868

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 293, 487, 586, 974, 1172, 1465, 1948, 2435, 2930, 3223, 4870, 5357, 5860, 6446, 9740, 10714, 12892, 16115, 21428, 26785, 32230, 53570, 64460, 107140, 142691, 285382, 570764, 713455, 1426910, 1569601, 2853820, 3139202, 6278404, 7848005, 15696010, 31392020]

約数ペア:

[(1, 31392020), (2, 15696010), (4, 7848005), (5, 6278404), (10, 3139202), (11, 2853820), (20, 1569601), (22, 1426910), (44, 713455), (55, 570764), (110, 285382), (220, 142691), (293, 107140), (487, 64460), (586, 53570), (974, 32230), (1172, 26785), (1465, 21428), (1948, 16115), (2435, 12892), (2930, 10714), (3223, 9740), (4870, 6446), (5357, 5860)]