712580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 1693440

約数和(自身を除く): 980860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 79, 82, 110, 158, 164, 205, 220, 316, 395, 410, 451, 790, 820, 869, 902, 1580, 1738, 1804, 2255, 3239, 3476, 4345, 4510, 6478, 8690, 9020, 12956, 16195, 17380, 32390, 35629, 64780, 71258, 142516, 178145, 356290, 712580]

約数ペア:

[(1, 712580), (2, 356290), (4, 178145), (5, 142516), (10, 71258), (11, 64780), (20, 35629), (22, 32390), (41, 17380), (44, 16195), (55, 12956), (79, 9020), (82, 8690), (110, 6478), (158, 4510), (164, 4345), (205, 3476), (220, 3239), (316, 2255), (395, 1804), (410, 1738), (451, 1580), (790, 902), (820, 869)]