26320515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 47067552

約数和(自身を除く): 20747037

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 73, 129, 195, 215, 219, 365, 559, 645, 949, 1095, 1677, 1849, 2795, 2847, 3139, 4745, 5547, 8385, 9245, 9417, 14235, 15695, 24037, 27735, 40807, 47085, 72111, 120185, 122421, 134977, 204035, 360555, 404931, 612105, 674885, 1754701, 2024655, 5264103, 8773505, 26320515]

約数ペア:

[(1, 26320515), (3, 8773505), (5, 5264103), (13, 2024655), (15, 1754701), (39, 674885), (43, 612105), (65, 404931), (73, 360555), (129, 204035), (195, 134977), (215, 122421), (219, 120185), (365, 72111), (559, 47085), (645, 40807), (949, 27735), (1095, 24037), (1677, 15695), (1849, 14235), (2795, 9417), (2847, 9245), (3139, 8385), (4745, 5547)]