21185000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:268

約数の個数: 80

約数和(自身を含む): 52483200

約数和(自身を除く): 31298200

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 223, 250, 380, 446, 475, 500, 625, 760, 892, 950, 1000, 1115, 1250, 1784, 1900, 2230, 2375, 2500, 3800, 4237, 4460, 4750, 5000, 5575, 8474, 8920, 9500, 11150, 11875, 16948, 19000, 21185, 22300, 23750, 27875, 33896, 42370, 44600, 47500, 55750, 84740, 95000, 105925, 111500, 139375, 169480, 211850, 223000, 278750, 423700, 529625, 557500, 847400, 1059250, 1115000, 2118500, 2648125, 4237000, 5296250, 10592500, 21185000]

約数ペア:

[(1, 21185000), (2, 10592500), (4, 5296250), (5, 4237000), (8, 2648125), (10, 2118500), (19, 1115000), (20, 1059250), (25, 847400), (38, 557500), (40, 529625), (50, 423700), (76, 278750), (95, 223000), (100, 211850), (125, 169480), (152, 139375), (190, 111500), (200, 105925), (223, 95000), (250, 84740), (380, 55750), (446, 47500), (475, 44600), (500, 42370), (625, 33896), (760, 27875), (892, 23750), (950, 22300), (1000, 21185), (1115, 19000), (1250, 16948), (1784, 11875), (1900, 11150), (2230, 9500), (2375, 8920), (2500, 8474), (3800, 5575), (4237, 5000), (4460, 4750)]