81220680

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{225613}}^1$

素因数の和:225630

約数の個数: 48

約数和(自身を含む): 263968380

約数和(自身を除く): 182747700

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 225613, 451226, 676839, 902452, 1128065, 1353678, 1804904, 2030517, 2256130, 2707356, 3384195, 4061034, 4512260, 5414712, 6768390, 8122068, 9024520, 10152585, 13536780, 16244136, 20305170, 27073560, 40610340, 81220680]

約数ペア:

[(1, 81220680), (2, 40610340), (3, 27073560), (4, 20305170), (5, 16244136), (6, 13536780), (8, 10152585), (9, 9024520), (10, 8122068), (12, 6768390), (15, 5414712), (18, 4512260), (20, 4061034), (24, 3384195), (30, 2707356), (36, 2256130), (40, 2030517), (45, 1804904), (60, 1353678), (72, 1128065), (90, 902452), (120, 676839), (180, 451226), (360, 225613)]