28574720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{5581}}^1$

素因数の和:5606

約数の個数: 44

約数和(自身を含む): 68558124

約数和(自身を除く): 39983404

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, 5581, 11162, 22324, 27905, 44648, 55810, 89296, 111620, 178592, 223240, 357184, 446480, 714368, 892960, 1428736, 1785920, 2857472, 3571840, 5714944, 7143680, 14287360, 28574720]

約数ペア:

[(1, 28574720), (2, 14287360), (4, 7143680), (5, 5714944), (8, 3571840), (10, 2857472), (16, 1785920), (20, 1428736), (32, 892960), (40, 714368), (64, 446480), (80, 357184), (128, 223240), (160, 178592), (256, 111620), (320, 89296), (512, 55810), (640, 44648), (1024, 27905), (1280, 22324), (2560, 11162), (5120, 5581)]