71644140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{398023}}^1$

素因数の和:398038

約数の個数: 36

約数和(自身を含む): 217321104

約数和(自身を除く): 145676964

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 398023, 796046, 1194069, 1592092, 1990115, 2388138, 3582207, 3980230, 4776276, 5970345, 7164414, 7960460, 11940690, 14328828, 17911035, 23881380, 35822070, 71644140]

約数ペア:

[(1, 71644140), (2, 35822070), (3, 23881380), (4, 17911035), (5, 14328828), (6, 11940690), (9, 7960460), (10, 7164414), (12, 5970345), (15, 4776276), (18, 3980230), (20, 3582207), (30, 2388138), (36, 1990115), (45, 1592092), (60, 1194069), (90, 796046), (180, 398023)]