28656290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1609}}^1$

素因数の和:1766

約数の個数: 32

約数和(自身を含む): 55989360

約数和(自身を除く): 27333070

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1609, 1781, 3218, 3562, 8045, 8905, 16090, 17810, 20917, 41834, 104585, 209170, 220433, 440866, 1102165, 2204330, 2865629, 5731258, 14328145, 28656290]

約数ペア:

[(1, 28656290), (2, 14328145), (5, 5731258), (10, 2865629), (13, 2204330), (26, 1102165), (65, 440866), (130, 220433), (137, 209170), (274, 104585), (685, 41834), (1370, 20917), (1609, 17810), (1781, 16090), (3218, 8905), (3562, 8045)]