2021495980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{50311}}^1$

素因数の和:50375

約数の個数: 72

約数和(自身を含む): 5058770976

約数和(自身を除く): 3037274996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 245, 287, 410, 490, 574, 820, 980, 1148, 1435, 2009, 2870, 4018, 5740, 8036, 10045, 20090, 40180, 50311, 100622, 201244, 251555, 352177, 503110, 704354, 1006220, 1408708, 1760885, 2062751, 2465239, 3521770, 4125502, 4930478, 7043540, 8251004, 9860956, 10313755, 12326195, 14439257, 20627510, 24652390, 28878514, 41255020, 49304780, 57757028, 72196285, 101074799, 144392570, 202149598, 288785140, 404299196, 505373995, 1010747990, 2021495980]

約数ペア:

[(1, 2021495980), (2, 1010747990), (4, 505373995), (5, 404299196), (7, 288785140), (10, 202149598), (14, 144392570), (20, 101074799), (28, 72196285), (35, 57757028), (41, 49304780), (49, 41255020), (70, 28878514), (82, 24652390), (98, 20627510), (140, 14439257), (164, 12326195), (196, 10313755), (205, 9860956), (245, 8251004), (287, 7043540), (410, 4930478), (490, 4125502), (574, 3521770), (820, 2465239), (980, 2062751), (1148, 1760885), (1435, 1408708), (2009, 1006220), (2870, 704354), (4018, 503110), (5740, 352177), (8036, 251555), (10045, 201244), (20090, 100622), (40180, 50311)]