72780565

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{743}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 103493376

約数和(自身を除く): 30712811

約数列:

[1, 5, 11, 13, 55, 65, 137, 143, 685, 715, 743, 1507, 1781, 3715, 7535, 8173, 8905, 9659, 19591, 40865, 48295, 97955, 101791, 106249, 508955, 531245, 1119701, 1323283, 5598505, 6616415, 14556113, 72780565]

約数ペア:

[(1, 72780565), (5, 14556113), (11, 6616415), (13, 5598505), (55, 1323283), (65, 1119701), (137, 531245), (143, 508955), (685, 106249), (715, 101791), (743, 97955), (1507, 48295), (1781, 40865), (3715, 19591), (7535, 9659), (8173, 8905)]