28665325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{457}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 38561768

約数和(自身を除く): 9896443

約数列:

[1, 5, 13, 25, 65, 193, 325, 457, 965, 2285, 2509, 4825, 5941, 11425, 12545, 29705, 62725, 88201, 148525, 441005, 1146613, 2205025, 5733065, 28665325]

約数ペア:

[(1, 28665325), (5, 5733065), (13, 2205025), (25, 1146613), (65, 441005), (193, 148525), (325, 88201), (457, 62725), (965, 29705), (2285, 12545), (2509, 11425), (4825, 5941)]