20147660145

素因数分解:

$3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1\times {\mathrm{1217}}^1$

素因数の和:2272

約数の個数: 80

約数和(自身を含む): 37064977488

約数和(自身を除く): 16917317343

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 81, 123, 135, 205, 369, 405, 615, 997, 1107, 1217, 1845, 2991, 3321, 3651, 4985, 5535, 6085, 8973, 10953, 14955, 16605, 18255, 26919, 32859, 40877, 44865, 49897, 54765, 80757, 98577, 122631, 134595, 149691, 164295, 204385, 249485, 367893, 403785, 449073, 492885, 613155, 748455, 1103679, 1213349, 1347219, 1839465, 2245365, 3311037, 3640047, 4041657, 5518395, 6066745, 6736095, 10920141, 16555185, 18200235, 20208285, 32760423, 49747309, 54600705, 98281269, 149241927, 163802115, 248736545, 447725781, 491406345, 746209635, 1343177343, 2238628905, 4029532029, 6715886715, 20147660145]

約数ペア:

[(1, 20147660145), (3, 6715886715), (5, 4029532029), (9, 2238628905), (15, 1343177343), (27, 746209635), (41, 491406345), (45, 447725781), (81, 248736545), (123, 163802115), (135, 149241927), (205, 98281269), (369, 54600705), (405, 49747309), (615, 32760423), (997, 20208285), (1107, 18200235), (1217, 16555185), (1845, 10920141), (2991, 6736095), (3321, 6066745), (3651, 5518395), (4985, 4041657), (5535, 3640047), (6085, 3311037), (8973, 2245365), (10953, 1839465), (14955, 1347219), (16605, 1213349), (18255, 1103679), (26919, 748455), (32859, 613155), (40877, 492885), (44865, 449073), (49897, 403785), (54765, 367893), (80757, 249485), (98577, 204385), (122631, 164295), (134595, 149691)]