2220280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1181}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 5106240

約数和(自身を除く): 2885960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1181, 1880, 2362, 4724, 5905, 9448, 11810, 23620, 47240, 55507, 111014, 222028, 277535, 444056, 555070, 1110140, 2220280]

約数ペア:

[(1, 2220280), (2, 1110140), (4, 555070), (5, 444056), (8, 277535), (10, 222028), (20, 111014), (40, 55507), (47, 47240), (94, 23620), (188, 11810), (235, 9448), (376, 5905), (470, 4724), (940, 2362), (1181, 1880)]