39894540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^2$

素因数の和:156

約数の個数: 144

約数和(自身を含む): 133469952

約数和(自身を除く): 93575412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 47, 60, 70, 84, 86, 94, 105, 129, 140, 141, 172, 188, 210, 215, 235, 258, 282, 301, 329, 420, 430, 470, 516, 564, 602, 645, 658, 705, 860, 903, 940, 987, 1204, 1290, 1316, 1410, 1505, 1645, 1806, 1974, 2021, 2209, 2580, 2820, 3010, 3290, 3612, 3948, 4042, 4418, 4515, 4935, 6020, 6063, 6580, 6627, 8084, 8836, 9030, 9870, 10105, 11045, 12126, 13254, 14147, 15463, 18060, 19740, 20210, 22090, 24252, 26508, 28294, 30315, 30926, 33135, 40420, 42441, 44180, 46389, 56588, 60630, 61852, 66270, 70735, 77315, 84882, 92778, 94987, 121260, 132540, 141470, 154630, 169764, 185556, 189974, 212205, 231945, 282940, 284961, 309260, 379948, 424410, 463890, 474935, 569922, 664909, 848820, 927780, 949870, 1139844, 1329818, 1424805, 1899740, 1994727, 2659636, 2849610, 3324545, 3989454, 5699220, 6649090, 7978908, 9973635, 13298180, 19947270, 39894540]

約数ペア:

[(1, 39894540), (2, 19947270), (3, 13298180), (4, 9973635), (5, 7978908), (6, 6649090), (7, 5699220), (10, 3989454), (12, 3324545), (14, 2849610), (15, 2659636), (20, 1994727), (21, 1899740), (28, 1424805), (30, 1329818), (35, 1139844), (42, 949870), (43, 927780), (47, 848820), (60, 664909), (70, 569922), (84, 474935), (86, 463890), (94, 424410), (105, 379948), (129, 309260), (140, 284961), (141, 282940), (172, 231945), (188, 212205), (210, 189974), (215, 185556), (235, 169764), (258, 154630), (282, 141470), (301, 132540), (329, 121260), (420, 94987), (430, 92778), (470, 84882), (516, 77315), (564, 70735), (602, 66270), (645, 61852), (658, 60630), (705, 56588), (860, 46389), (903, 44180), (940, 42441), (987, 40420), (1204, 33135), (1290, 30926), (1316, 30315), (1410, 28294), (1505, 26508), (1645, 24252), (1806, 22090), (1974, 20210), (2021, 19740), (2209, 18060), (2580, 15463), (2820, 14147), (3010, 13254), (3290, 12126), (3612, 11045), (3948, 10105), (4042, 9870), (4418, 9030), (4515, 8836), (4935, 8084), (6020, 6627), (6063, 6580)]