21981200

素因数分解:

$2^4\times 5^2\times {\mathrm{179}}^1\times {\mathrm{307}}^1$

素因数の和:504

約数の個数: 60

約数和(自身を含む): 53277840

約数和(自身を除く): 31296640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 179, 200, 307, 358, 400, 614, 716, 895, 1228, 1432, 1535, 1790, 2456, 2864, 3070, 3580, 4475, 4912, 6140, 7160, 7675, 8950, 12280, 14320, 15350, 17900, 24560, 30700, 35800, 54953, 61400, 71600, 109906, 122800, 219812, 274765, 439624, 549530, 879248, 1099060, 1373825, 2198120, 2747650, 4396240, 5495300, 10990600, 21981200]

約数ペア:

[(1, 21981200), (2, 10990600), (4, 5495300), (5, 4396240), (8, 2747650), (10, 2198120), (16, 1373825), (20, 1099060), (25, 879248), (40, 549530), (50, 439624), (80, 274765), (100, 219812), (179, 122800), (200, 109906), (307, 71600), (358, 61400), (400, 54953), (614, 35800), (716, 30700), (895, 24560), (1228, 17900), (1432, 15350), (1535, 14320), (1790, 12280), (2456, 8950), (2864, 7675), (3070, 7160), (3580, 6140), (4475, 4912)]