1285153900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{6359}}^1$

素因数の和:6463

約数の個数: 72

約数和(自身を含む): 2914813440

約数和(自身を除く): 1629659540

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 47, 50, 86, 94, 100, 172, 188, 215, 235, 430, 470, 860, 940, 1075, 1175, 2021, 2150, 2350, 4042, 4300, 4700, 6359, 8084, 10105, 12718, 20210, 25436, 31795, 40420, 50525, 63590, 101050, 127180, 158975, 202100, 273437, 298873, 317950, 546874, 597746, 635900, 1093748, 1195492, 1367185, 1494365, 2734370, 2988730, 5468740, 5977460, 6835925, 7471825, 12851539, 13671850, 14943650, 25703078, 27343700, 29887300, 51406156, 64257695, 128515390, 257030780, 321288475, 642576950, 1285153900]

約数ペア:

[(1, 1285153900), (2, 642576950), (4, 321288475), (5, 257030780), (10, 128515390), (20, 64257695), (25, 51406156), (43, 29887300), (47, 27343700), (50, 25703078), (86, 14943650), (94, 13671850), (100, 12851539), (172, 7471825), (188, 6835925), (215, 5977460), (235, 5468740), (430, 2988730), (470, 2734370), (860, 1494365), (940, 1367185), (1075, 1195492), (1175, 1093748), (2021, 635900), (2150, 597746), (2350, 546874), (4042, 317950), (4300, 298873), (4700, 273437), (6359, 202100), (8084, 158975), (10105, 127180), (12718, 101050), (20210, 63590), (25436, 50525), (31795, 40420)]