406428080

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{123911}}^1$

素因数の和:123965

約数の個数: 40

約数和(自身を含む): 968000544

約数和(自身を除く): 561572464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 123911, 247822, 495644, 619555, 991288, 1239110, 1982576, 2478220, 4956440, 5080351, 9912880, 10160702, 20321404, 25401755, 40642808, 50803510, 81285616, 101607020, 203214040, 406428080]

約数ペア:

[(1, 406428080), (2, 203214040), (4, 101607020), (5, 81285616), (8, 50803510), (10, 40642808), (16, 25401755), (20, 20321404), (40, 10160702), (41, 9912880), (80, 5080351), (82, 4956440), (164, 2478220), (205, 1982576), (328, 1239110), (410, 991288), (656, 619555), (820, 495644), (1640, 247822), (3280, 123911)]