21113600

素因数分解:

$2^8\times 5^2\times {\mathrm{3299}}^1$

素因数の和:3325

約数の個数: 54

約数和(自身を含む): 52275300

約数和(自身を除く): 31161700

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, 3299, 6400, 6598, 13196, 16495, 26392, 32990, 52784, 65980, 82475, 105568, 131960, 164950, 211136, 263920, 329900, 422272, 527840, 659800, 844544, 1055680, 1319600, 2111360, 2639200, 4222720, 5278400, 10556800, 21113600]

約数ペア:

[(1, 21113600), (2, 10556800), (4, 5278400), (5, 4222720), (8, 2639200), (10, 2111360), (16, 1319600), (20, 1055680), (25, 844544), (32, 659800), (40, 527840), (50, 422272), (64, 329900), (80, 263920), (100, 211136), (128, 164950), (160, 131960), (200, 105568), (256, 82475), (320, 65980), (400, 52784), (640, 32990), (800, 26392), (1280, 16495), (1600, 13196), (3200, 6598), (3299, 6400)]