28268475

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 49684320

約数和(自身を除く): 21415845

約数列:

[1, 3, 5, 15, 25, 29, 41, 75, 87, 123, 145, 205, 317, 435, 615, 725, 951, 1025, 1189, 1585, 2175, 3075, 3567, 4755, 5945, 7925, 9193, 12997, 17835, 23775, 27579, 29725, 38991, 45965, 64985, 89175, 137895, 194955, 229825, 324925, 376913, 689475, 974775, 1130739, 1884565, 5653695, 9422825, 28268475]

約数ペア:

[(1, 28268475), (3, 9422825), (5, 5653695), (15, 1884565), (25, 1130739), (29, 974775), (41, 689475), (75, 376913), (87, 324925), (123, 229825), (145, 194955), (205, 137895), (317, 89175), (435, 64985), (615, 45965), (725, 38991), (951, 29725), (1025, 27579), (1189, 23775), (1585, 17835), (2175, 12997), (3075, 9193), (3567, 7925), (4755, 5945)]