20571420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6469}}^1$

素因数の和:6534

約数の個数: 48

約数和(自身を含む): 58695840

約数和(自身を除く): 38124420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6469, 12938, 19407, 25876, 32345, 38814, 64690, 77628, 97035, 129380, 194070, 342857, 388140, 685714, 1028571, 1371428, 1714285, 2057142, 3428570, 4114284, 5142855, 6857140, 10285710, 20571420]

約数ペア:

[(1, 20571420), (2, 10285710), (3, 6857140), (4, 5142855), (5, 4114284), (6, 3428570), (10, 2057142), (12, 1714285), (15, 1371428), (20, 1028571), (30, 685714), (53, 388140), (60, 342857), (106, 194070), (159, 129380), (212, 97035), (265, 77628), (318, 64690), (530, 38814), (636, 32345), (795, 25876), (1060, 19407), (1590, 12938), (3180, 6469)]