28878225

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{16741}}^1$

素因数の和:16777

約数の個数: 24

約数和(自身を含む): 49824192

約数和(自身を除く): 20945967

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 16741, 50223, 83705, 251115, 385043, 418525, 1155129, 1255575, 1925215, 5775645, 9626075, 28878225]

約数ペア:

[(1, 28878225), (3, 9626075), (5, 5775645), (15, 1925215), (23, 1255575), (25, 1155129), (69, 418525), (75, 385043), (115, 251115), (345, 83705), (575, 50223), (1725, 16741)]