19979310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51229}}^1$

素因数の和:51252

約数の個数: 32

約数和(自身を含む): 51639840

約数和(自身を除く): 31660530

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 51229, 102458, 153687, 256145, 307374, 512290, 665977, 768435, 1331954, 1536870, 1997931, 3329885, 3995862, 6659770, 9989655, 19979310]

約数ペア:

[(1, 19979310), (2, 9989655), (3, 6659770), (5, 3995862), (6, 3329885), (10, 1997931), (13, 1536870), (15, 1331954), (26, 768435), (30, 665977), (39, 512290), (65, 307374), (78, 256145), (130, 153687), (195, 102458), (390, 51229)]