19983210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51239}}^1$

素因数の和:51262

約数の個数: 32

約数和(自身を含む): 51649920

約数和(自身を除く): 31666710

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51239, 102478, 153717, 256195, 307434, 512390, 666107, 768585, 1332214, 1537170, 1998321, 3330535, 3996642, 6661070, 9991605, 19983210]

約数ペア:

[(1, 19983210), (2, 9991605), (3, 6661070), (5, 3996642), (6, 3330535), (10, 1998321), (13, 1537170), (15, 1332214), (26, 768585), (30, 666107), (39, 512390), (65, 307434), (78, 256195), (130, 153717), (195, 102478), (390, 51239)]