81156765

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{3511}}^1$

素因数の和:3609

約数の個数: 32

約数和(自身を含む): 137558016

約数和(自身を除く): 56401251

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 1005, 1541, 3511, 4623, 7705, 10533, 17555, 23115, 52665, 80753, 235237, 242259, 403765, 705711, 1176185, 1211295, 3528555, 5410451, 16231353, 27052255, 81156765]

約数ペア:

[(1, 81156765), (3, 27052255), (5, 16231353), (15, 5410451), (23, 3528555), (67, 1211295), (69, 1176185), (115, 705711), (201, 403765), (335, 242259), (345, 235237), (1005, 80753), (1541, 52665), (3511, 23115), (4623, 17555), (7705, 10533)]