390495170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{479}}^1\times {\mathrm{6271}}^1$

素因数の和:6770

約数の個数: 32

約数和(自身を含む): 758661120

約数和(自身を除く): 368165950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 479, 958, 2395, 4790, 6227, 6271, 12454, 12542, 31135, 31355, 62270, 62710, 81523, 163046, 407615, 815230, 3003809, 6007618, 15019045, 30038090, 39049517, 78099034, 195247585, 390495170]

約数ペア:

[(1, 390495170), (2, 195247585), (5, 78099034), (10, 39049517), (13, 30038090), (26, 15019045), (65, 6007618), (130, 3003809), (479, 815230), (958, 407615), (2395, 163046), (4790, 81523), (6227, 62710), (6271, 62270), (12454, 31355), (12542, 31135)]