28870405

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 38787840

約数和(自身を除く): 9917435

約数列:

[1, 5, 19, 23, 73, 95, 115, 181, 365, 437, 905, 1387, 1679, 2185, 3439, 4163, 6935, 8395, 13213, 17195, 20815, 31901, 66065, 79097, 159505, 251047, 303899, 395485, 1255235, 1519495, 5774081, 28870405]

約数ペア:

[(1, 28870405), (5, 5774081), (19, 1519495), (23, 1255235), (73, 395485), (95, 303899), (115, 251047), (181, 159505), (365, 79097), (437, 66065), (905, 31901), (1387, 20815), (1679, 17195), (2185, 13213), (3439, 8395), (4163, 6935)]