83281360

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1619}}^1$

素因数の和:2275

約数の個数: 40

約数和(自身を含む): 194050080

約数和(自身を除く): 110768720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 1619, 2572, 3215, 3238, 5144, 6430, 6476, 8095, 10288, 12860, 12952, 16190, 25720, 25904, 32380, 51440, 64760, 129520, 1041017, 2082034, 4164068, 5205085, 8328136, 10410170, 16656272, 20820340, 41640680, 83281360]

約数ペア:

[(1, 83281360), (2, 41640680), (4, 20820340), (5, 16656272), (8, 10410170), (10, 8328136), (16, 5205085), (20, 4164068), (40, 2082034), (80, 1041017), (643, 129520), (1286, 64760), (1619, 51440), (2572, 32380), (3215, 25904), (3238, 25720), (5144, 16190), (6430, 12952), (6476, 12860), (8095, 10288)]