81163580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{1201}}^1$

素因数の和:1350

約数の個数: 48

約数和(自身を含む): 177703680

約数和(自身を除く): 96540100

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 1090, 1201, 2180, 2402, 3379, 4804, 6005, 6758, 12010, 13516, 16895, 24020, 33790, 37231, 67580, 74462, 130909, 148924, 186155, 261818, 372310, 523636, 654545, 744620, 1309090, 2618180, 4058179, 8116358, 16232716, 20290895, 40581790, 81163580]

約数ペア:

[(1, 81163580), (2, 40581790), (4, 20290895), (5, 16232716), (10, 8116358), (20, 4058179), (31, 2618180), (62, 1309090), (109, 744620), (124, 654545), (155, 523636), (218, 372310), (310, 261818), (436, 186155), (545, 148924), (620, 130909), (1090, 74462), (1201, 67580), (2180, 37231), (2402, 33790), (3379, 24020), (4804, 16895), (6005, 13516), (6758, 12010)]