28779745

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 32

約数和(自身を含む): 37739520

約数和(自身を除く): 8959775

約数列:

[1, 5, 29, 41, 47, 103, 145, 205, 235, 515, 1189, 1363, 1927, 2987, 4223, 4841, 5945, 6815, 9635, 14935, 21115, 24205, 55883, 122467, 140389, 198481, 279415, 612335, 701945, 992405, 5755949, 28779745]

約数ペア:

[(1, 28779745), (5, 5755949), (29, 992405), (41, 701945), (47, 612335), (103, 279415), (145, 198481), (205, 140389), (235, 122467), (515, 55883), (1189, 24205), (1363, 21115), (1927, 14935), (2987, 9635), (4223, 6815), (4841, 5945)]