72139815

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16193}}^1$

素因数の和:16221

約数の個数: 40

約数和(自身を含む): 141082128

約数和(自身を除く): 68942313

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 16193, 48579, 80965, 145737, 178123, 242895, 437211, 534369, 728685, 890615, 1311633, 1603107, 2186055, 2671845, 4809321, 6558165, 8015535, 14427963, 24046605, 72139815]

約数ペア:

[(1, 72139815), (3, 24046605), (5, 14427963), (9, 8015535), (11, 6558165), (15, 4809321), (27, 2671845), (33, 2186055), (45, 1603107), (55, 1311633), (81, 890615), (99, 728685), (135, 534369), (165, 437211), (297, 242895), (405, 178123), (495, 145737), (891, 80965), (1485, 48579), (4455, 16193)]