209900800

素因数分解:

$2^8\times 5^2\times {\mathrm{32797}}^1$

素因数の和:32823

約数の個数: 54

約数和(自身を含む): 519553118

約数和(自身を除く): 309652318

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, 6400, 32797, 65594, 131188, 163985, 262376, 327970, 524752, 655940, 819925, 1049504, 1311880, 1639850, 2099008, 2623760, 3279700, 4198016, 5247520, 6559400, 8396032, 10495040, 13118800, 20990080, 26237600, 41980160, 52475200, 104950400, 209900800]

約数ペア:

[(1, 209900800), (2, 104950400), (4, 52475200), (5, 41980160), (8, 26237600), (10, 20990080), (16, 13118800), (20, 10495040), (25, 8396032), (32, 6559400), (40, 5247520), (50, 4198016), (64, 3279700), (80, 2623760), (100, 2099008), (128, 1639850), (160, 1311880), (200, 1049504), (256, 819925), (320, 655940), (400, 524752), (640, 327970), (800, 262376), (1280, 163985), (1600, 131188), (3200, 65594), (6400, 32797)]