8386640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1327}}^1$

素因数の和:1419

約数の個数: 40

約数和(自身を含む): 19760640

約数和(自身を除く): 11374000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1327, 1580, 2654, 3160, 5308, 6320, 6635, 10616, 13270, 21232, 26540, 53080, 104833, 106160, 209666, 419332, 524165, 838664, 1048330, 1677328, 2096660, 4193320, 8386640]

約数ペア:

[(1, 8386640), (2, 4193320), (4, 2096660), (5, 1677328), (8, 1048330), (10, 838664), (16, 524165), (20, 419332), (40, 209666), (79, 106160), (80, 104833), (158, 53080), (316, 26540), (395, 21232), (632, 13270), (790, 10616), (1264, 6635), (1327, 6320), (1580, 5308), (2654, 3160)]