18758000

素因数分解:

$2^4\times 5^3\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 80

約数和(自身を含む): 46309536

約数和(自身を除く): 27551536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 83, 100, 113, 125, 166, 200, 226, 250, 332, 400, 415, 452, 500, 565, 664, 830, 904, 1000, 1130, 1328, 1660, 1808, 2000, 2075, 2260, 2825, 3320, 4150, 4520, 5650, 6640, 8300, 9040, 9379, 10375, 11300, 14125, 16600, 18758, 20750, 22600, 28250, 33200, 37516, 41500, 45200, 46895, 56500, 75032, 83000, 93790, 113000, 150064, 166000, 187580, 226000, 234475, 375160, 468950, 750320, 937900, 1172375, 1875800, 2344750, 3751600, 4689500, 9379000, 18758000]

約数ペア:

[(1, 18758000), (2, 9379000), (4, 4689500), (5, 3751600), (8, 2344750), (10, 1875800), (16, 1172375), (20, 937900), (25, 750320), (40, 468950), (50, 375160), (80, 234475), (83, 226000), (100, 187580), (113, 166000), (125, 150064), (166, 113000), (200, 93790), (226, 83000), (250, 75032), (332, 56500), (400, 46895), (415, 45200), (452, 41500), (500, 37516), (565, 33200), (664, 28250), (830, 22600), (904, 20750), (1000, 18758), (1130, 16600), (1328, 14125), (1660, 11300), (1808, 10375), (2000, 9379), (2075, 9040), (2260, 8300), (2825, 6640), (3320, 5650), (4150, 4520)]