28927215

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1471}}^1$

素因数の和:1524

約数の個数: 48

約数和(自身を含む): 55111680

約数和(自身を除く): 26184465

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1311, 1471, 2185, 3933, 4413, 6555, 7355, 13239, 19665, 22065, 27949, 33833, 66195, 83847, 101499, 139745, 169165, 251541, 304497, 419235, 507495, 642827, 1257705, 1522485, 1928481, 3214135, 5785443, 9642405, 28927215]

約数ペア:

[(1, 28927215), (3, 9642405), (5, 5785443), (9, 3214135), (15, 1928481), (19, 1522485), (23, 1257705), (45, 642827), (57, 507495), (69, 419235), (95, 304497), (115, 251541), (171, 169165), (207, 139745), (285, 101499), (345, 83847), (437, 66195), (855, 33833), (1035, 27949), (1311, 22065), (1471, 19665), (2185, 13239), (3933, 7355), (4413, 6555)]