78392380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1021}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 180280800

約数和(自身を除く): 101888420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 698, 1021, 1396, 1745, 2042, 3490, 3839, 4084, 5105, 6980, 7678, 10210, 11231, 15356, 19195, 20420, 22462, 38390, 44924, 56155, 76780, 112310, 224620, 356329, 712658, 1425316, 1781645, 3563290, 3919619, 7126580, 7839238, 15678476, 19598095, 39196190, 78392380]

約数ペア:

[(1, 78392380), (2, 39196190), (4, 19598095), (5, 15678476), (10, 7839238), (11, 7126580), (20, 3919619), (22, 3563290), (44, 1781645), (55, 1425316), (110, 712658), (220, 356329), (349, 224620), (698, 112310), (1021, 76780), (1396, 56155), (1745, 44924), (2042, 38390), (3490, 22462), (3839, 20420), (4084, 19195), (5105, 15356), (6980, 11231), (7678, 10210)]