78915420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{438419}}^1$

素因数の和:438434

約数の個数: 36

約数和(自身を含む): 239377320

約数和(自身を除く): 160461900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 438419, 876838, 1315257, 1753676, 2192095, 2630514, 3945771, 4384190, 5261028, 6576285, 7891542, 8768380, 13152570, 15783084, 19728855, 26305140, 39457710, 78915420]

約数ペア:

[(1, 78915420), (2, 39457710), (3, 26305140), (4, 19728855), (5, 15783084), (6, 13152570), (9, 8768380), (10, 7891542), (12, 6576285), (15, 5261028), (18, 4384190), (20, 3945771), (30, 2630514), (36, 2192095), (45, 1753676), (60, 1315257), (90, 876838), (180, 438419)]