28738725

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{3391}}^1$

素因数の和:3517

約数の個数: 24

約数和(自身を含む): 47949312

約数和(自身を除く): 19210587

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2825, 3391, 8475, 10173, 16955, 50865, 84775, 254325, 383183, 1149549, 1915915, 5747745, 9579575, 28738725]

約数ペア:

[(1, 28738725), (3, 9579575), (5, 5747745), (15, 1915915), (25, 1149549), (75, 383183), (113, 254325), (339, 84775), (565, 50865), (1695, 16955), (2825, 10173), (3391, 8475)]