278009780

素因数分解:

$2^2\times 5^1\times {\mathrm{2819}}^1\times {\mathrm{4931}}^1$

素因数の和:7759

約数の個数: 24

約数和(自身を含む): 584146080

約数和(自身を除く): 306136300

約数列:

[1, 2, 4, 5, 10, 20, 2819, 4931, 5638, 9862, 11276, 14095, 19724, 24655, 28190, 49310, 56380, 98620, 13900489, 27800978, 55601956, 69502445, 139004890, 278009780]

約数ペア:

[(1, 278009780), (2, 139004890), (4, 69502445), (5, 55601956), (10, 27800978), (20, 13900489), (2819, 98620), (4931, 56380), (5638, 49310), (9862, 28190), (11276, 24655), (14095, 19724)]