2931760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2819}}^1$

素因数の和:2845

約数の個数: 40

約数和(自身を含む): 7343280

約数和(自身を除く): 4411520

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 2819, 5638, 11276, 14095, 22552, 28190, 36647, 45104, 56380, 73294, 112760, 146588, 183235, 225520, 293176, 366470, 586352, 732940, 1465880, 2931760]

約数ペア:

[(1, 2931760), (2, 1465880), (4, 732940), (5, 586352), (8, 366470), (10, 293176), (13, 225520), (16, 183235), (20, 146588), (26, 112760), (40, 73294), (52, 56380), (65, 45104), (80, 36647), (104, 28190), (130, 22552), (208, 14095), (260, 11276), (520, 5638), (1040, 2819)]