21031680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{5477}}^1$

素因数の和:5501

約数の個数: 72

約数和(自身を含む): 67182192

約数和(自身を除く): 46150512

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 5477, 10954, 16431, 21908, 27385, 32862, 43816, 54770, 65724, 82155, 87632, 109540, 131448, 164310, 175264, 219080, 262896, 328620, 350528, 438160, 525792, 657240, 701056, 876320, 1051584, 1314480, 1402112, 1752640, 2103168, 2628960, 3505280, 4206336, 5257920, 7010560, 10515840, 21031680]

約数ペア:

[(1, 21031680), (2, 10515840), (3, 7010560), (4, 5257920), (5, 4206336), (6, 3505280), (8, 2628960), (10, 2103168), (12, 1752640), (15, 1402112), (16, 1314480), (20, 1051584), (24, 876320), (30, 701056), (32, 657240), (40, 525792), (48, 438160), (60, 350528), (64, 328620), (80, 262896), (96, 219080), (120, 175264), (128, 164310), (160, 131448), (192, 109540), (240, 87632), (256, 82155), (320, 65724), (384, 54770), (480, 43816), (640, 32862), (768, 27385), (960, 21908), (1280, 16431), (1920, 10954), (3840, 5477)]