138607980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{330019}}^1$

素因数の和:330038

約数の個数: 48

約数和(自身を含む): 443546880

約数和(自身を除く): 304938900

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 330019, 660038, 990057, 1320076, 1650095, 1980114, 2310133, 3300190, 3960228, 4620266, 4950285, 6600380, 6930399, 9240532, 9900570, 11550665, 13860798, 19801140, 23101330, 27721596, 34651995, 46202660, 69303990, 138607980]

約数ペア:

[(1, 138607980), (2, 69303990), (3, 46202660), (4, 34651995), (5, 27721596), (6, 23101330), (7, 19801140), (10, 13860798), (12, 11550665), (14, 9900570), (15, 9240532), (20, 6930399), (21, 6600380), (28, 4950285), (30, 4620266), (35, 3960228), (42, 3300190), (60, 2310133), (70, 1980114), (84, 1650095), (105, 1320076), (140, 990057), (210, 660038), (420, 330019)]