20415070

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2963}}^1$

素因数の和:3036

約数の個数: 32

約数和(自身を含む): 40334112

約数和(自身を除く): 19919042

約数列:

[1, 2, 5, 10, 13, 26, 53, 65, 106, 130, 265, 530, 689, 1378, 2963, 3445, 5926, 6890, 14815, 29630, 38519, 77038, 157039, 192595, 314078, 385190, 785195, 1570390, 2041507, 4083014, 10207535, 20415070]

約数ペア:

[(1, 20415070), (2, 10207535), (5, 4083014), (10, 2041507), (13, 1570390), (26, 785195), (53, 385190), (65, 314078), (106, 192595), (130, 157039), (265, 77038), (530, 38519), (689, 29630), (1378, 14815), (2963, 6890), (3445, 5926)]