28388605

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{271}}^1$

素因数の和:397

約数の個数: 32

約数和(自身を含む): 40578048

約数和(自身を除く): 12189443

約数列:

[1, 5, 7, 35, 41, 73, 205, 271, 287, 365, 511, 1355, 1435, 1897, 2555, 2993, 9485, 11111, 14965, 19783, 20951, 55555, 77777, 98915, 104755, 138481, 388885, 692405, 811103, 4055515, 5677721, 28388605]

約数ペア:

[(1, 28388605), (5, 5677721), (7, 4055515), (35, 811103), (41, 692405), (73, 388885), (205, 138481), (271, 104755), (287, 98915), (365, 77777), (511, 55555), (1355, 20951), (1435, 19783), (1897, 14965), (2555, 11111), (2993, 9485)]