39745280

素因数分解:

$2^8\times 5^1\times {\mathrm{31051}}^1$

素因数の和:31072

約数の個数: 36

約数和(自身を含む): 95205432

約数和(自身を除く): 55460152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 31051, 62102, 124204, 155255, 248408, 310510, 496816, 621020, 993632, 1242040, 1987264, 2484080, 3974528, 4968160, 7949056, 9936320, 19872640, 39745280]

約数ペア:

[(1, 39745280), (2, 19872640), (4, 9936320), (5, 7949056), (8, 4968160), (10, 3974528), (16, 2484080), (20, 1987264), (32, 1242040), (40, 993632), (64, 621020), (80, 496816), (128, 310510), (160, 248408), (256, 155255), (320, 124204), (640, 62102), (1280, 31051)]