215046640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{65563}}^1$

素因数の和:65617

約数の個数: 40

約数和(自身を含む): 512185968

約数和(自身を除く): 297139328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 65563, 131126, 262252, 327815, 524504, 655630, 1049008, 1311260, 2622520, 2688083, 5245040, 5376166, 10752332, 13440415, 21504664, 26880830, 43009328, 53761660, 107523320, 215046640]

約数ペア:

[(1, 215046640), (2, 107523320), (4, 53761660), (5, 43009328), (8, 26880830), (10, 21504664), (16, 13440415), (20, 10752332), (40, 5376166), (41, 5245040), (80, 2688083), (82, 2622520), (164, 1311260), (205, 1049008), (328, 655630), (410, 524504), (656, 327815), (820, 262252), (1640, 131126), (3280, 65563)]