161963560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{368099}}^1$

素因数の和:368121

約数の個数: 32

約数和(自身を含む): 397548000

約数和(自身を除く): 235584440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 368099, 736198, 1472396, 1840495, 2944792, 3680990, 4049089, 7361980, 8098178, 14723960, 16196356, 20245445, 32392712, 40490890, 80981780, 161963560]

約数ペア:

[(1, 161963560), (2, 80981780), (4, 40490890), (5, 32392712), (8, 20245445), (10, 16196356), (11, 14723960), (20, 8098178), (22, 7361980), (40, 4049089), (44, 3680990), (55, 2944792), (88, 1840495), (110, 1472396), (220, 736198), (440, 368099)]