20888360

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28100440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 106, 118, 167, 212, 236, 265, 295, 334, 424, 472, 530, 590, 668, 835, 1060, 1180, 1336, 1670, 2120, 2360, 3127, 3340, 6254, 6680, 8851, 9853, 12508, 15635, 17702, 19706, 25016, 31270, 35404, 39412, 44255, 49265, 62540, 70808, 78824, 88510, 98530, 125080, 177020, 197060, 354040, 394120, 522209, 1044418, 2088836, 2611045, 4177672, 5222090, 10444180, 20888360]

約数ペア:

[(1, 20888360), (2, 10444180), (4, 5222090), (5, 4177672), (8, 2611045), (10, 2088836), (20, 1044418), (40, 522209), (53, 394120), (59, 354040), (106, 197060), (118, 177020), (167, 125080), (212, 98530), (236, 88510), (265, 78824), (295, 70808), (334, 62540), (424, 49265), (472, 44255), (530, 39412), (590, 35404), (668, 31270), (835, 25016), (1060, 19706), (1180, 17702), (1336, 15635), (1670, 12508), (2120, 9853), (2360, 8851), (3127, 6680), (3340, 6254)]