55440640

素因数分解:

$2^8\times 5^1\times {\mathrm{43313}}^1$

素因数の和:43334

約数の個数: 36

約数和(自身を含む): 132800724

約数和(自身を除く): 77360084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 43313, 86626, 173252, 216565, 346504, 433130, 693008, 866260, 1386016, 1732520, 2772032, 3465040, 5544064, 6930080, 11088128, 13860160, 27720320, 55440640]

約数ペア:

[(1, 55440640), (2, 27720320), (4, 13860160), (5, 11088128), (8, 6930080), (10, 5544064), (16, 3465040), (20, 2772032), (32, 1732520), (40, 1386016), (64, 866260), (80, 693008), (128, 433130), (160, 346504), (256, 216565), (320, 173252), (640, 86626), (1280, 43313)]