81273345

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^2\times {\mathrm{71}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 141740928

約数和(自身を除く): 60467583

約数列:

[1, 3, 5, 15, 17, 51, 67, 71, 85, 201, 213, 255, 335, 355, 1005, 1065, 1139, 1207, 3417, 3621, 4489, 4757, 5695, 6035, 13467, 14271, 17085, 18105, 22445, 23785, 67335, 71355, 76313, 80869, 228939, 242607, 318719, 381565, 404345, 956157, 1144695, 1213035, 1593595, 4780785, 5418223, 16254669, 27091115, 81273345]

約数ペア:

[(1, 81273345), (3, 27091115), (5, 16254669), (15, 5418223), (17, 4780785), (51, 1593595), (67, 1213035), (71, 1144695), (85, 956157), (201, 404345), (213, 381565), (255, 318719), (335, 242607), (355, 228939), (1005, 80869), (1065, 76313), (1139, 71355), (1207, 67335), (3417, 23785), (3621, 22445), (4489, 18105), (4757, 17085), (5695, 14271), (6035, 13467)]