2180200

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{991}}^1$

素因数の和:1018

約数の個数: 48

約数和(自身を含む): 5535360

約数和(自身を除く): 3355160

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, 991, 1100, 1982, 2200, 3964, 4955, 7928, 9910, 10901, 19820, 21802, 24775, 39640, 43604, 49550, 54505, 87208, 99100, 109010, 198200, 218020, 272525, 436040, 545050, 1090100, 2180200]

約数ペア:

[(1, 2180200), (2, 1090100), (4, 545050), (5, 436040), (8, 272525), (10, 218020), (11, 198200), (20, 109010), (22, 99100), (25, 87208), (40, 54505), (44, 49550), (50, 43604), (55, 39640), (88, 24775), (100, 21802), (110, 19820), (200, 10901), (220, 9910), (275, 7928), (440, 4955), (550, 3964), (991, 2200), (1100, 1982)]