28907685

素因数分解:

$3^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:675

約数の個数: 40

約数和(自身を含む): 52298136

約数和(自身を除く): 23390451

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 137, 405, 411, 521, 685, 1233, 1563, 2055, 2605, 3699, 4689, 6165, 7815, 11097, 14067, 18495, 23445, 42201, 55485, 70335, 71377, 211005, 214131, 356885, 642393, 1070655, 1927179, 3211965, 5781537, 9635895, 28907685]

約数ペア:

[(1, 28907685), (3, 9635895), (5, 5781537), (9, 3211965), (15, 1927179), (27, 1070655), (45, 642393), (81, 356885), (135, 214131), (137, 211005), (405, 71377), (411, 70335), (521, 55485), (685, 42201), (1233, 23445), (1563, 18495), (2055, 14067), (2605, 11097), (3699, 7815), (4689, 6165)]