28912640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5647}}^1$

素因数の和:5672

約数の個数: 44

約数和(自身を含む): 69368736

約数和(自身を除く): 40456096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 5647, 11294, 22588, 28235, 45176, 56470, 90352, 112940, 180704, 225880, 361408, 451760, 722816, 903520, 1445632, 1807040, 2891264, 3614080, 5782528, 7228160, 14456320, 28912640]

約数ペア:

[(1, 28912640), (2, 14456320), (4, 7228160), (5, 5782528), (8, 3614080), (10, 2891264), (16, 1807040), (20, 1445632), (32, 903520), (40, 722816), (64, 451760), (80, 361408), (128, 225880), (160, 180704), (256, 112940), (320, 90352), (512, 56470), (640, 45176), (1024, 28235), (1280, 22588), (2560, 11294), (5120, 5647)]