28509615

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 51757056

約数和(自身を除く): 23247441

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 107, 155, 191, 279, 321, 465, 535, 573, 955, 963, 1395, 1605, 1719, 2865, 3317, 4815, 5921, 8595, 9951, 16585, 17763, 20437, 29605, 29853, 49755, 53289, 61311, 88815, 102185, 149265, 183933, 266445, 306555, 633547, 919665, 1900641, 3167735, 5701923, 9503205, 28509615]

約数ペア:

[(1, 28509615), (3, 9503205), (5, 5701923), (9, 3167735), (15, 1900641), (31, 919665), (45, 633547), (93, 306555), (107, 266445), (155, 183933), (191, 149265), (279, 102185), (321, 88815), (465, 61311), (535, 53289), (573, 49755), (955, 29853), (963, 29605), (1395, 20437), (1605, 17763), (1719, 16585), (2865, 9951), (3317, 8595), (4815, 5921)]