18225280

素因数分解:

$2^7\times 5^1\times {\mathrm{28477}}^1$

素因数の和:28496

約数の個数: 32

約数和(自身を含む): 43571340

約数和(自身を除く): 25346060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28477, 56954, 113908, 142385, 227816, 284770, 455632, 569540, 911264, 1139080, 1822528, 2278160, 3645056, 4556320, 9112640, 18225280]

約数ペア:

[(1, 18225280), (2, 9112640), (4, 4556320), (5, 3645056), (8, 2278160), (10, 1822528), (16, 1139080), (20, 911264), (32, 569540), (40, 455632), (64, 284770), (80, 227816), (128, 142385), (160, 113908), (320, 56954), (640, 28477)]