220990520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{929}}^1$

素因数の和:1272

約数の個数: 64

約数和(自身を含む): 525636000

約数和(自身を除く): 304645480

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 313, 380, 626, 760, 929, 1252, 1565, 1858, 2504, 3130, 3716, 4645, 5947, 6260, 7432, 9290, 11894, 12520, 17651, 18580, 23788, 29735, 35302, 37160, 47576, 59470, 70604, 88255, 118940, 141208, 176510, 237880, 290777, 353020, 581554, 706040, 1163108, 1453885, 2326216, 2907770, 5524763, 5815540, 11049526, 11631080, 22099052, 27623815, 44198104, 55247630, 110495260, 220990520]

約数ペア:

[(1, 220990520), (2, 110495260), (4, 55247630), (5, 44198104), (8, 27623815), (10, 22099052), (19, 11631080), (20, 11049526), (38, 5815540), (40, 5524763), (76, 2907770), (95, 2326216), (152, 1453885), (190, 1163108), (313, 706040), (380, 581554), (626, 353020), (760, 290777), (929, 237880), (1252, 176510), (1565, 141208), (1858, 118940), (2504, 88255), (3130, 70604), (3716, 59470), (4645, 47576), (5947, 37160), (6260, 35302), (7432, 29735), (9290, 23788), (11894, 18580), (12520, 17651)]