80219920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91159}}^1$

素因数の和:91183

約数の個数: 40

約数和(自身を含む): 203469120

約数和(自身を除く): 123249200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91159, 182318, 364636, 455795, 729272, 911590, 1002749, 1458544, 1823180, 2005498, 3646360, 4010996, 5013745, 7292720, 8021992, 10027490, 16043984, 20054980, 40109960, 80219920]

約数ペア:

[(1, 80219920), (2, 40109960), (4, 20054980), (5, 16043984), (8, 10027490), (10, 8021992), (11, 7292720), (16, 5013745), (20, 4010996), (22, 3646360), (40, 2005498), (44, 1823180), (55, 1458544), (80, 1002749), (88, 911590), (110, 729272), (176, 455795), (220, 364636), (440, 182318), (880, 91159)]