28082005

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:493

約数の個数: 32

約数和(自身を含む): 40492800

約数和(自身を除く): 12410795

約数列:

[1, 5, 7, 29, 35, 73, 145, 203, 365, 379, 511, 1015, 1895, 2117, 2555, 2653, 10585, 10991, 13265, 14819, 27667, 54955, 74095, 76937, 138335, 193669, 384685, 802343, 968345, 4011715, 5616401, 28082005]

約数ペア:

[(1, 28082005), (5, 5616401), (7, 4011715), (29, 968345), (35, 802343), (73, 384685), (145, 193669), (203, 138335), (365, 76937), (379, 74095), (511, 54955), (1015, 27667), (1895, 14819), (2117, 13265), (2555, 10991), (2653, 10585)]