28945455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1319}}^1$

素因数の和:1364

約数の個数: 64

約数和(自身を含む): 60825600

約数和(自身を除く): 31880145

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 33, 35, 55, 57, 77, 95, 105, 133, 165, 209, 231, 285, 385, 399, 627, 665, 1045, 1155, 1319, 1463, 1995, 3135, 3957, 4389, 6595, 7315, 9233, 14509, 19785, 21945, 25061, 27699, 43527, 46165, 72545, 75183, 101563, 125305, 138495, 175427, 217635, 275671, 304689, 375915, 507815, 526281, 827013, 877135, 1378355, 1523445, 1929697, 2631405, 4135065, 5789091, 9648485, 28945455]

約数ペア:

[(1, 28945455), (3, 9648485), (5, 5789091), (7, 4135065), (11, 2631405), (15, 1929697), (19, 1523445), (21, 1378355), (33, 877135), (35, 827013), (55, 526281), (57, 507815), (77, 375915), (95, 304689), (105, 275671), (133, 217635), (165, 175427), (209, 138495), (231, 125305), (285, 101563), (385, 75183), (399, 72545), (627, 46165), (665, 43527), (1045, 27699), (1155, 25061), (1319, 21945), (1463, 19785), (1995, 14509), (3135, 9233), (3957, 7315), (4389, 6595)]