12801680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9413}}^1$

素因数の和:9443

約数の個数: 40

約数和(自身を含む): 31518072

約数和(自身を除く): 18716392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9413, 18826, 37652, 47065, 75304, 94130, 150608, 160021, 188260, 320042, 376520, 640084, 753040, 800105, 1280168, 1600210, 2560336, 3200420, 6400840, 12801680]

約数ペア:

[(1, 12801680), (2, 6400840), (4, 3200420), (5, 2560336), (8, 1600210), (10, 1280168), (16, 800105), (17, 753040), (20, 640084), (34, 376520), (40, 320042), (68, 188260), (80, 160021), (85, 150608), (136, 94130), (170, 75304), (272, 47065), (340, 37652), (680, 18826), (1360, 9413)]