81392445

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{2753}}^1$

素因数の和:2843

約数の個数: 40

約数和(自身を含む): 147955896

約数和(自身を除く): 66563451

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 657, 1095, 1971, 2753, 3285, 5913, 8259, 9855, 13765, 24777, 29565, 41295, 74331, 123885, 200969, 222993, 371655, 602907, 1004845, 1114965, 1808721, 3014535, 5426163, 9043605, 16278489, 27130815, 81392445]

約数ペア:

[(1, 81392445), (3, 27130815), (5, 16278489), (9, 9043605), (15, 5426163), (27, 3014535), (45, 1808721), (73, 1114965), (81, 1004845), (135, 602907), (219, 371655), (365, 222993), (405, 200969), (657, 123885), (1095, 74331), (1971, 41295), (2753, 29565), (3285, 24777), (5913, 13765), (8259, 9855)]