27899140

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 60307632

約数和(自身を除く): 32408492

約数列:

[1, 2, 4, 5, 10, 20, 73, 97, 146, 194, 197, 292, 365, 388, 394, 485, 730, 788, 970, 985, 1460, 1940, 1970, 3940, 7081, 14162, 14381, 19109, 28324, 28762, 35405, 38218, 57524, 70810, 71905, 76436, 95545, 141620, 143810, 191090, 287620, 382180, 1394957, 2789914, 5579828, 6974785, 13949570, 27899140]

約数ペア:

[(1, 27899140), (2, 13949570), (4, 6974785), (5, 5579828), (10, 2789914), (20, 1394957), (73, 382180), (97, 287620), (146, 191090), (194, 143810), (197, 141620), (292, 95545), (365, 76436), (388, 71905), (394, 70810), (485, 57524), (730, 38218), (788, 35405), (970, 28762), (985, 28324), (1460, 19109), (1940, 14381), (1970, 14162), (3940, 7081)]