81187020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{451039}}^1$

素因数の和:451054

約数の個数: 36

約数和(自身を含む): 246267840

約数和(自身を除く): 165080820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 451039, 902078, 1353117, 1804156, 2255195, 2706234, 4059351, 4510390, 5412468, 6765585, 8118702, 9020780, 13531170, 16237404, 20296755, 27062340, 40593510, 81187020]

約数ペア:

[(1, 81187020), (2, 40593510), (3, 27062340), (4, 20296755), (5, 16237404), (6, 13531170), (9, 9020780), (10, 8118702), (12, 6765585), (15, 5412468), (18, 4510390), (20, 4059351), (30, 2706234), (36, 2255195), (45, 1804156), (60, 1353117), (90, 902078), (180, 451039)]