28130820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3373}}^1$

素因数の和:3524

約数の個数: 48

約数和(自身を含む): 79356480

約数和(自身を除く): 51225660

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 139, 278, 417, 556, 695, 834, 1390, 1668, 2085, 2780, 3373, 4170, 6746, 8340, 10119, 13492, 16865, 20238, 33730, 40476, 50595, 67460, 101190, 202380, 468847, 937694, 1406541, 1875388, 2344235, 2813082, 4688470, 5626164, 7032705, 9376940, 14065410, 28130820]

約数ペア:

[(1, 28130820), (2, 14065410), (3, 9376940), (4, 7032705), (5, 5626164), (6, 4688470), (10, 2813082), (12, 2344235), (15, 1875388), (20, 1406541), (30, 937694), (60, 468847), (139, 202380), (278, 101190), (417, 67460), (556, 50595), (695, 40476), (834, 33730), (1390, 20238), (1668, 16865), (2085, 13492), (2780, 10119), (3373, 8340), (4170, 6746)]