1900597820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{439}}^1\times {\mathrm{1789}}^1$

素因数の和:2259

約数の個数: 72

約数和(自身を含む): 4399533600

約数和(自身を除く): 2498935780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 439, 484, 605, 878, 1210, 1756, 1789, 2195, 2420, 3578, 4390, 4829, 7156, 8780, 8945, 9658, 17890, 19316, 19679, 24145, 35780, 39358, 48290, 53119, 78716, 96580, 98395, 106238, 196790, 212476, 216469, 265595, 393580, 432938, 531190, 785371, 865876, 1062380, 1082345, 1570742, 2164690, 3141484, 3926855, 4329380, 7853710, 8639081, 15707420, 17278162, 34556324, 43195405, 86390810, 95029891, 172781620, 190059782, 380119564, 475149455, 950298910, 1900597820]

約数ペア:

[(1, 1900597820), (2, 950298910), (4, 475149455), (5, 380119564), (10, 190059782), (11, 172781620), (20, 95029891), (22, 86390810), (44, 43195405), (55, 34556324), (110, 17278162), (121, 15707420), (220, 8639081), (242, 7853710), (439, 4329380), (484, 3926855), (605, 3141484), (878, 2164690), (1210, 1570742), (1756, 1082345), (1789, 1062380), (2195, 865876), (2420, 785371), (3578, 531190), (4390, 432938), (4829, 393580), (7156, 265595), (8780, 216469), (8945, 212476), (9658, 196790), (17890, 106238), (19316, 98395), (19679, 96580), (24145, 78716), (35780, 53119), (39358, 48290)]