81450840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{678757}}^1$

素因数の和:678771

約数の個数: 32

約数和(自身を含む): 244352880

約数和(自身を除く): 162902040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 678757, 1357514, 2036271, 2715028, 3393785, 4072542, 5430056, 6787570, 8145084, 10181355, 13575140, 16290168, 20362710, 27150280, 40725420, 81450840]

約数ペア:

[(1, 81450840), (2, 40725420), (3, 27150280), (4, 20362710), (5, 16290168), (6, 13575140), (8, 10181355), (10, 8145084), (12, 6787570), (15, 5430056), (20, 4072542), (24, 3393785), (30, 2715028), (40, 2036271), (60, 1357514), (120, 678757)]