20392550

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{151}}^1$

素因数の和:273

約数の個数: 48

約数和(自身を含む): 39750432

約数和(自身を除く): 19357882

約数列:

[1, 2, 5, 10, 25, 37, 50, 73, 74, 146, 151, 185, 302, 365, 370, 730, 755, 925, 1510, 1825, 1850, 2701, 3650, 3775, 5402, 5587, 7550, 11023, 11174, 13505, 22046, 27010, 27935, 55115, 55870, 67525, 110230, 135050, 139675, 275575, 279350, 407851, 551150, 815702, 2039255, 4078510, 10196275, 20392550]

約数ペア:

[(1, 20392550), (2, 10196275), (5, 4078510), (10, 2039255), (25, 815702), (37, 551150), (50, 407851), (73, 279350), (74, 275575), (146, 139675), (151, 135050), (185, 110230), (302, 67525), (365, 55870), (370, 55115), (730, 27935), (755, 27010), (925, 22046), (1510, 13505), (1825, 11174), (1850, 11023), (2701, 7550), (3650, 5587), (3775, 5402)]