7171720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4373}}^1$

素因数の和:4425

約数の個数: 32

約数和(自身を含む): 16533720

約数和(自身を除く): 9362000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4373, 8746, 17492, 21865, 34984, 43730, 87460, 174920, 179293, 358586, 717172, 896465, 1434344, 1792930, 3585860, 7171720]

約数ペア:

[(1, 7171720), (2, 3585860), (4, 1792930), (5, 1434344), (8, 896465), (10, 717172), (20, 358586), (40, 179293), (41, 174920), (82, 87460), (164, 43730), (205, 34984), (328, 21865), (410, 17492), (820, 8746), (1640, 4373)]