21422500

素因数分解:

$2^2\times 5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:95

約数の個数: 120

約数和(自身を含む): 55107360

約数和(自身を除く): 33684860

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 41, 44, 50, 55, 76, 82, 95, 100, 110, 125, 164, 190, 205, 209, 220, 250, 275, 380, 410, 418, 451, 475, 500, 550, 625, 779, 820, 836, 902, 950, 1025, 1045, 1100, 1250, 1375, 1558, 1804, 1900, 2050, 2090, 2255, 2375, 2500, 2750, 3116, 3895, 4100, 4180, 4510, 4750, 5125, 5225, 5500, 6875, 7790, 8569, 9020, 9500, 10250, 10450, 11275, 11875, 13750, 15580, 17138, 19475, 20500, 20900, 22550, 23750, 25625, 26125, 27500, 34276, 38950, 42845, 45100, 47500, 51250, 52250, 56375, 77900, 85690, 97375, 102500, 104500, 112750, 130625, 171380, 194750, 214225, 225500, 261250, 281875, 389500, 428450, 486875, 522500, 563750, 856900, 973750, 1071125, 1127500, 1947500, 2142250, 4284500, 5355625, 10711250, 21422500]

約数ペア:

[(1, 21422500), (2, 10711250), (4, 5355625), (5, 4284500), (10, 2142250), (11, 1947500), (19, 1127500), (20, 1071125), (22, 973750), (25, 856900), (38, 563750), (41, 522500), (44, 486875), (50, 428450), (55, 389500), (76, 281875), (82, 261250), (95, 225500), (100, 214225), (110, 194750), (125, 171380), (164, 130625), (190, 112750), (205, 104500), (209, 102500), (220, 97375), (250, 85690), (275, 77900), (380, 56375), (410, 52250), (418, 51250), (451, 47500), (475, 45100), (500, 42845), (550, 38950), (625, 34276), (779, 27500), (820, 26125), (836, 25625), (902, 23750), (950, 22550), (1025, 20900), (1045, 20500), (1100, 19475), (1250, 17138), (1375, 15580), (1558, 13750), (1804, 11875), (1900, 11275), (2050, 10450), (2090, 10250), (2255, 9500), (2375, 9020), (2500, 8569), (2750, 7790), (3116, 6875), (3895, 5500), (4100, 5225), (4180, 5125), (4510, 4750)]