20856900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{1879}}^1$

素因数の和:1933

約数の個数: 72

約数和(自身を含む): 62009920

約数和(自身を除く): 41153020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 37, 50, 60, 74, 75, 100, 111, 148, 150, 185, 222, 300, 370, 444, 555, 740, 925, 1110, 1850, 1879, 2220, 2775, 3700, 3758, 5550, 5637, 7516, 9395, 11100, 11274, 18790, 22548, 28185, 37580, 46975, 56370, 69523, 93950, 112740, 139046, 140925, 187900, 208569, 278092, 281850, 347615, 417138, 563700, 695230, 834276, 1042845, 1390460, 1738075, 2085690, 3476150, 4171380, 5214225, 6952300, 10428450, 20856900]

約数ペア:

[(1, 20856900), (2, 10428450), (3, 6952300), (4, 5214225), (5, 4171380), (6, 3476150), (10, 2085690), (12, 1738075), (15, 1390460), (20, 1042845), (25, 834276), (30, 695230), (37, 563700), (50, 417138), (60, 347615), (74, 281850), (75, 278092), (100, 208569), (111, 187900), (148, 140925), (150, 139046), (185, 112740), (222, 93950), (300, 69523), (370, 56370), (444, 46975), (555, 37580), (740, 28185), (925, 22548), (1110, 18790), (1850, 11274), (1879, 11100), (2220, 9395), (2775, 7516), (3700, 5637), (3758, 5550)]