30821780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4831}}^1$

素因数の和:4880

約数の個数: 48

約数和(自身を含む): 73059840

約数和(自身を除く): 42238060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 145, 220, 290, 319, 580, 638, 1276, 1595, 3190, 4831, 6380, 9662, 19324, 24155, 48310, 53141, 96620, 106282, 140099, 212564, 265705, 280198, 531410, 560396, 700495, 1062820, 1400990, 1541089, 2801980, 3082178, 6164356, 7705445, 15410890, 30821780]

約数ペア:

[(1, 30821780), (2, 15410890), (4, 7705445), (5, 6164356), (10, 3082178), (11, 2801980), (20, 1541089), (22, 1400990), (29, 1062820), (44, 700495), (55, 560396), (58, 531410), (110, 280198), (116, 265705), (145, 212564), (220, 140099), (290, 106282), (319, 96620), (580, 53141), (638, 48310), (1276, 24155), (1595, 19324), (3190, 9662), (4831, 6380)]