20386345

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 28984320

約数和(自身を除く): 8597975

約数列:

[1, 5, 7, 35, 73, 79, 101, 365, 395, 505, 511, 553, 707, 2555, 2765, 3535, 5767, 7373, 7979, 28835, 36865, 39895, 40369, 51611, 55853, 201845, 258055, 279265, 582467, 2912335, 4077269, 20386345]

約数ペア:

[(1, 20386345), (5, 4077269), (7, 2912335), (35, 582467), (73, 279265), (79, 258055), (101, 201845), (365, 55853), (395, 51611), (505, 40369), (511, 39895), (553, 36865), (707, 28835), (2555, 7979), (2765, 7373), (3535, 5767)]