19428200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{8831}}^1$

素因数の和:8858

約数の個数: 48

約数和(自身を含む): 49282560

約数和(自身を除く): 29854360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 8831, 17662, 35324, 44155, 70648, 88310, 97141, 176620, 194282, 220775, 353240, 388564, 441550, 485705, 777128, 883100, 971410, 1766200, 1942820, 2428525, 3885640, 4857050, 9714100, 19428200]

約数ペア:

[(1, 19428200), (2, 9714100), (4, 4857050), (5, 3885640), (8, 2428525), (10, 1942820), (11, 1766200), (20, 971410), (22, 883100), (25, 777128), (40, 485705), (44, 441550), (50, 388564), (55, 353240), (88, 220775), (100, 194282), (110, 176620), (200, 97141), (220, 88310), (275, 70648), (440, 44155), (550, 35324), (1100, 17662), (2200, 8831)]