408520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1459}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 1051200

約数和(自身を除く): 642680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1459, 2918, 5836, 7295, 10213, 11672, 14590, 20426, 29180, 40852, 51065, 58360, 81704, 102130, 204260, 408520]

約数ペア:

[(1, 408520), (2, 204260), (4, 102130), (5, 81704), (7, 58360), (8, 51065), (10, 40852), (14, 29180), (20, 20426), (28, 14590), (35, 11672), (40, 10213), (56, 7295), (70, 5836), (140, 2918), (280, 1459)]