81561360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{339839}}^1$

素因数の和:339855

約数の個数: 40

約数和(自身を含む): 252840960

約数和(自身を除く): 171279600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 339839, 679678, 1019517, 1359356, 1699195, 2039034, 2718712, 3398390, 4078068, 5097585, 5437424, 6796780, 8156136, 10195170, 13593560, 16312272, 20390340, 27187120, 40780680, 81561360]

約数ペア:

[(1, 81561360), (2, 40780680), (3, 27187120), (4, 20390340), (5, 16312272), (6, 13593560), (8, 10195170), (10, 8156136), (12, 6796780), (15, 5437424), (16, 5097585), (20, 4078068), (24, 3398390), (30, 2718712), (40, 2039034), (48, 1699195), (60, 1359356), (80, 1019517), (120, 679678), (240, 339839)]