21886720

素因数分解:

$2^8\times 5^1\times {\mathrm{17099}}^1$

素因数の和:17120

約数の個数: 36

約数和(自身を含む): 52428600

約数和(自身を除く): 30541880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 17099, 34198, 68396, 85495, 136792, 170990, 273584, 341980, 547168, 683960, 1094336, 1367920, 2188672, 2735840, 4377344, 5471680, 10943360, 21886720]

約数ペア:

[(1, 21886720), (2, 10943360), (4, 5471680), (5, 4377344), (8, 2735840), (10, 2188672), (16, 1367920), (20, 1094336), (32, 683960), (40, 547168), (64, 341980), (80, 273584), (128, 170990), (160, 136792), (256, 85495), (320, 68396), (640, 34198), (1280, 17099)]