1640656437

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{6299}}^1$

素因数の和:6545

約数の個数: 32

約数和(自身を含む): 2548224000

約数和(自身を除く): 907567563

約数列:

[1, 3, 7, 21, 79, 157, 237, 471, 553, 1099, 1659, 3297, 6299, 12403, 18897, 37209, 44093, 86821, 132279, 260463, 497621, 988943, 1492863, 2966829, 3483347, 6922601, 10450041, 20767803, 78126497, 234379491, 546885479, 1640656437]

約数ペア:

[(1, 1640656437), (3, 546885479), (7, 234379491), (21, 78126497), (79, 20767803), (157, 10450041), (237, 6922601), (471, 3483347), (553, 2966829), (1099, 1492863), (1659, 988943), (3297, 497621), (6299, 260463), (12403, 132279), (18897, 86821), (37209, 44093)]