28528155

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8929}}^1$

素因数の和:9011

約数の個数: 24

約数和(自身を含む): 50150880

約数和(自身を除く): 21622725

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 1065, 3195, 8929, 26787, 44645, 80361, 133935, 401805, 633959, 1901877, 3169795, 5705631, 9509385, 28528155]

約数ペア:

[(1, 28528155), (3, 9509385), (5, 5705631), (9, 3169795), (15, 1901877), (45, 633959), (71, 401805), (213, 133935), (355, 80361), (639, 44645), (1065, 26787), (3195, 8929)]