64867220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6857}}^1$

素因数の和:6920

約数の個数: 48

約数和(自身を含む): 152083008

約数和(自身を除く): 87215788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 6857, 9460, 13714, 27428, 34285, 68570, 75427, 137140, 150854, 294851, 301708, 377135, 589702, 754270, 1179404, 1474255, 1508540, 2948510, 3243361, 5897020, 6486722, 12973444, 16216805, 32433610, 64867220]

約数ペア:

[(1, 64867220), (2, 32433610), (4, 16216805), (5, 12973444), (10, 6486722), (11, 5897020), (20, 3243361), (22, 2948510), (43, 1508540), (44, 1474255), (55, 1179404), (86, 754270), (110, 589702), (172, 377135), (215, 301708), (220, 294851), (430, 150854), (473, 137140), (860, 75427), (946, 68570), (1892, 34285), (2365, 27428), (4730, 13714), (6857, 9460)]