79779920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90659}}^1$

素因数の和:90683

約数の個数: 40

約数和(自身を含む): 202353120

約数和(自身を除く): 122573200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 90659, 181318, 362636, 453295, 725272, 906590, 997249, 1450544, 1813180, 1994498, 3626360, 3988996, 4986245, 7252720, 7977992, 9972490, 15955984, 19944980, 39889960, 79779920]

約数ペア:

[(1, 79779920), (2, 39889960), (4, 19944980), (5, 15955984), (8, 9972490), (10, 7977992), (11, 7252720), (16, 4986245), (20, 3988996), (22, 3626360), (40, 1994498), (44, 1813180), (55, 1450544), (80, 997249), (88, 906590), (110, 725272), (176, 453295), (220, 362636), (440, 181318), (880, 90659)]