20806073750

素因数分解:

$2^1\times 5^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{30881}}^1$

素因数の和:30928

約数の個数: 120

約数和(自身を含む): 49491863784

約数和(自身を除く): 28685790034

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 70, 77, 98, 110, 125, 154, 175, 245, 250, 275, 350, 385, 490, 539, 550, 625, 770, 875, 1078, 1225, 1250, 1375, 1750, 1925, 2450, 2695, 2750, 3850, 4375, 5390, 6125, 6875, 8750, 9625, 12250, 13475, 13750, 19250, 26950, 30625, 30881, 48125, 61250, 61762, 67375, 96250, 134750, 154405, 216167, 308810, 336875, 339691, 432334, 673750, 679382, 772025, 1080835, 1513169, 1544050, 1698455, 2161670, 2377837, 3026338, 3396910, 3860125, 4755674, 5404175, 7565845, 7720250, 8492275, 10808350, 11889185, 15131690, 16644859, 16984550, 19300625, 23778370, 27020875, 33289718, 37829225, 38601250, 42461375, 54041750, 59445925, 75658450, 83224295, 84922750, 118891850, 135104375, 166448590, 189146125, 212306875, 270208750, 297229625, 378292250, 416121475, 424613750, 594459250, 832242950, 945730625, 1486148125, 1891461250, 2080607375, 2972296250, 4161214750, 10403036875, 20806073750]

約数ペア:

[(1, 20806073750), (2, 10403036875), (5, 4161214750), (7, 2972296250), (10, 2080607375), (11, 1891461250), (14, 1486148125), (22, 945730625), (25, 832242950), (35, 594459250), (49, 424613750), (50, 416121475), (55, 378292250), (70, 297229625), (77, 270208750), (98, 212306875), (110, 189146125), (125, 166448590), (154, 135104375), (175, 118891850), (245, 84922750), (250, 83224295), (275, 75658450), (350, 59445925), (385, 54041750), (490, 42461375), (539, 38601250), (550, 37829225), (625, 33289718), (770, 27020875), (875, 23778370), (1078, 19300625), (1225, 16984550), (1250, 16644859), (1375, 15131690), (1750, 11889185), (1925, 10808350), (2450, 8492275), (2695, 7720250), (2750, 7565845), (3850, 5404175), (4375, 4755674), (5390, 3860125), (6125, 3396910), (6875, 3026338), (8750, 2377837), (9625, 2161670), (12250, 1698455), (13475, 1544050), (13750, 1513169), (19250, 1080835), (26950, 772025), (30625, 679382), (30881, 673750), (48125, 432334), (61250, 339691), (61762, 336875), (67375, 308810), (96250, 216167), (134750, 154405)]