84172840

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15139}}^1$

素因数の和:15289

約数の個数: 32

約数和(自身を含む): 190764000

約数和(自身を除く): 106591160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 15139, 30278, 60556, 75695, 121112, 151390, 302780, 605560, 2104321, 4208642, 8417284, 10521605, 16834568, 21043210, 42086420, 84172840]

約数ペア:

[(1, 84172840), (2, 42086420), (4, 21043210), (5, 16834568), (8, 10521605), (10, 8417284), (20, 4208642), (40, 2104321), (139, 605560), (278, 302780), (556, 151390), (695, 121112), (1112, 75695), (1390, 60556), (2780, 30278), (5560, 15139)]