1072640

素因数分解:

$2^9\times 5^1\times {\mathrm{419}}^1$

素因数の和:442

約数の個数: 40

約数和(自身を含む): 2577960

約数和(自身を除く): 1505320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 419, 512, 640, 838, 1280, 1676, 2095, 2560, 3352, 4190, 6704, 8380, 13408, 16760, 26816, 33520, 53632, 67040, 107264, 134080, 214528, 268160, 536320, 1072640]

約数ペア:

[(1, 1072640), (2, 536320), (4, 268160), (5, 214528), (8, 134080), (10, 107264), (16, 67040), (20, 53632), (32, 33520), (40, 26816), (64, 16760), (80, 13408), (128, 8380), (160, 6704), (256, 4190), (320, 3352), (419, 2560), (512, 2095), (640, 1676), (838, 1280)]