20322495

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 60

約数和(自身を含む): 38724840

約数和(自身を除く): 18402345

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 139, 171, 285, 361, 405, 417, 513, 695, 855, 1083, 1251, 1539, 1805, 2085, 2565, 2641, 3249, 3753, 5415, 6255, 7695, 7923, 9747, 11259, 13205, 16245, 18765, 23769, 29241, 39615, 48735, 50179, 56295, 71307, 118845, 146205, 150537, 213921, 250895, 356535, 451611, 752685, 1069605, 1354833, 2258055, 4064499, 6774165, 20322495]

約数ペア:

[(1, 20322495), (3, 6774165), (5, 4064499), (9, 2258055), (15, 1354833), (19, 1069605), (27, 752685), (45, 451611), (57, 356535), (81, 250895), (95, 213921), (135, 150537), (139, 146205), (171, 118845), (285, 71307), (361, 56295), (405, 50179), (417, 48735), (513, 39615), (695, 29241), (855, 23769), (1083, 18765), (1251, 16245), (1539, 13205), (1805, 11259), (2085, 9747), (2565, 7923), (2641, 7695), (3249, 6255), (3753, 5415)]