20393490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52291}}^1$

素因数の和:52314

約数の個数: 32

約数和(自身を含む): 52710336

約数和(自身を除く): 32316846

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52291, 104582, 156873, 261455, 313746, 522910, 679783, 784365, 1359566, 1568730, 2039349, 3398915, 4078698, 6797830, 10196745, 20393490]

約数ペア:

[(1, 20393490), (2, 10196745), (3, 6797830), (5, 4078698), (6, 3398915), (10, 2039349), (13, 1568730), (15, 1359566), (26, 784365), (30, 679783), (39, 522910), (65, 313746), (78, 261455), (130, 156873), (195, 104582), (390, 52291)]