18937500

素因数分解:

$2^2\times 3^1\times 5^6\times {\mathrm{101}}^1$

素因数の和:138

約数の個数: 84

約数和(自身を含む): 55780536

約数和(自身を除く): 36843036

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 101, 125, 150, 202, 250, 300, 303, 375, 404, 500, 505, 606, 625, 750, 1010, 1212, 1250, 1500, 1515, 1875, 2020, 2500, 2525, 3030, 3125, 3750, 5050, 6060, 6250, 7500, 7575, 9375, 10100, 12500, 12625, 15150, 15625, 18750, 25250, 30300, 31250, 37500, 37875, 46875, 50500, 62500, 63125, 75750, 93750, 126250, 151500, 187500, 189375, 252500, 315625, 378750, 631250, 757500, 946875, 1262500, 1578125, 1893750, 3156250, 3787500, 4734375, 6312500, 9468750, 18937500]

約数ペア:

[(1, 18937500), (2, 9468750), (3, 6312500), (4, 4734375), (5, 3787500), (6, 3156250), (10, 1893750), (12, 1578125), (15, 1262500), (20, 946875), (25, 757500), (30, 631250), (50, 378750), (60, 315625), (75, 252500), (100, 189375), (101, 187500), (125, 151500), (150, 126250), (202, 93750), (250, 75750), (300, 63125), (303, 62500), (375, 50500), (404, 46875), (500, 37875), (505, 37500), (606, 31250), (625, 30300), (750, 25250), (1010, 18750), (1212, 15625), (1250, 15150), (1500, 12625), (1515, 12500), (1875, 10100), (2020, 9375), (2500, 7575), (2525, 7500), (3030, 6250), (3125, 6060), (3750, 5050)]