28217600

素因数分解:

$2^8\times 5^2\times {\mathrm{4409}}^1$

素因数の和:4435

約数の個数: 54

約数和(自身を含む): 69858810

約数和(自身を除く): 41641210

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 640, 800, 1280, 1600, 3200, 4409, 6400, 8818, 17636, 22045, 35272, 44090, 70544, 88180, 110225, 141088, 176360, 220450, 282176, 352720, 440900, 564352, 705440, 881800, 1128704, 1410880, 1763600, 2821760, 3527200, 5643520, 7054400, 14108800, 28217600]

約数ペア:

[(1, 28217600), (2, 14108800), (4, 7054400), (5, 5643520), (8, 3527200), (10, 2821760), (16, 1763600), (20, 1410880), (25, 1128704), (32, 881800), (40, 705440), (50, 564352), (64, 440900), (80, 352720), (100, 282176), (128, 220450), (160, 176360), (200, 141088), (256, 110225), (320, 88180), (400, 70544), (640, 44090), (800, 35272), (1280, 22045), (1600, 17636), (3200, 8818), (4409, 6400)]