38810020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:412

約数の個数: 48

約数和(自身を含む): 83655936

約数和(自身を除く): 44845916

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 151, 181, 284, 302, 355, 362, 604, 710, 724, 755, 905, 1420, 1510, 1810, 3020, 3620, 10721, 12851, 21442, 25702, 27331, 42884, 51404, 53605, 54662, 64255, 107210, 109324, 128510, 136655, 214420, 257020, 273310, 546620, 1940501, 3881002, 7762004, 9702505, 19405010, 38810020]

約数ペア:

[(1, 38810020), (2, 19405010), (4, 9702505), (5, 7762004), (10, 3881002), (20, 1940501), (71, 546620), (142, 273310), (151, 257020), (181, 214420), (284, 136655), (302, 128510), (355, 109324), (362, 107210), (604, 64255), (710, 54662), (724, 53605), (755, 51404), (905, 42884), (1420, 27331), (1510, 25702), (1810, 21442), (3020, 12851), (3620, 10721)]