66789820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1733}}^1$

素因数の和:1830

約数の個数: 48

約数和(自身を含む): 146821248

約数和(自身を除く): 80031428

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1733, 1927, 3466, 3854, 6932, 7708, 8665, 9635, 17330, 19270, 34660, 38540, 71053, 81451, 142106, 162902, 284212, 325804, 355265, 407255, 710530, 814510, 1421060, 1629020, 3339491, 6678982, 13357964, 16697455, 33394910, 66789820]

約数ペア:

[(1, 66789820), (2, 33394910), (4, 16697455), (5, 13357964), (10, 6678982), (20, 3339491), (41, 1629020), (47, 1421060), (82, 814510), (94, 710530), (164, 407255), (188, 355265), (205, 325804), (235, 284212), (410, 162902), (470, 142106), (820, 81451), (940, 71053), (1733, 38540), (1927, 34660), (3466, 19270), (3854, 17330), (6932, 9635), (7708, 8665)]