81507615

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{59}}^2\times {\mathrm{223}}^1$

素因数の和:356

約数の個数: 48

約数和(自身を含む): 152291328

約数和(自身を除く): 70783713

約数列:

[1, 3, 5, 7, 15, 21, 35, 59, 105, 177, 223, 295, 413, 669, 885, 1115, 1239, 1561, 2065, 3345, 3481, 4683, 6195, 7805, 10443, 13157, 17405, 23415, 24367, 39471, 52215, 65785, 73101, 92099, 121835, 197355, 276297, 365505, 460495, 776263, 1381485, 2328789, 3881315, 5433841, 11643945, 16301523, 27169205, 81507615]

約数ペア:

[(1, 81507615), (3, 27169205), (5, 16301523), (7, 11643945), (15, 5433841), (21, 3881315), (35, 2328789), (59, 1381485), (105, 776263), (177, 460495), (223, 365505), (295, 276297), (413, 197355), (669, 121835), (885, 92099), (1115, 73101), (1239, 65785), (1561, 52215), (2065, 39471), (3345, 24367), (3481, 23415), (4683, 17405), (6195, 13157), (7805, 10443)]