28415180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^2\times {\mathrm{151}}^1$

素因数の和:354

約数の個数: 36

約数和(自身を含む): 60692688

約数和(自身を除く): 32277508

約数列:

[1, 2, 4, 5, 10, 20, 97, 151, 194, 302, 388, 485, 604, 755, 970, 1510, 1940, 3020, 9409, 14647, 18818, 29294, 37636, 47045, 58588, 73235, 94090, 146470, 188180, 292940, 1420759, 2841518, 5683036, 7103795, 14207590, 28415180]

約数ペア:

[(1, 28415180), (2, 14207590), (4, 7103795), (5, 5683036), (10, 2841518), (20, 1420759), (97, 292940), (151, 188180), (194, 146470), (302, 94090), (388, 73235), (485, 58588), (604, 47045), (755, 37636), (970, 29294), (1510, 18818), (1940, 14647), (3020, 9409)]