21996800

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{491}}^1$

素因数の和:524

約数の個数: 108

約数和(自身を含む): 62350176

約数和(自身を除く): 40353376

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 256, 280, 320, 350, 400, 448, 491, 560, 640, 700, 800, 896, 982, 1120, 1280, 1400, 1600, 1792, 1964, 2240, 2455, 2800, 3200, 3437, 3928, 4480, 4910, 5600, 6400, 6874, 7856, 8960, 9820, 11200, 12275, 13748, 15712, 17185, 19640, 22400, 24550, 27496, 31424, 34370, 39280, 44800, 49100, 54992, 62848, 68740, 78560, 85925, 98200, 109984, 125696, 137480, 157120, 171850, 196400, 219968, 274960, 314240, 343700, 392800, 439936, 549920, 628480, 687400, 785600, 879872, 1099840, 1374800, 1571200, 2199680, 2749600, 3142400, 4399360, 5499200, 10998400, 21996800]

約数ペア:

[(1, 21996800), (2, 10998400), (4, 5499200), (5, 4399360), (7, 3142400), (8, 2749600), (10, 2199680), (14, 1571200), (16, 1374800), (20, 1099840), (25, 879872), (28, 785600), (32, 687400), (35, 628480), (40, 549920), (50, 439936), (56, 392800), (64, 343700), (70, 314240), (80, 274960), (100, 219968), (112, 196400), (128, 171850), (140, 157120), (160, 137480), (175, 125696), (200, 109984), (224, 98200), (256, 85925), (280, 78560), (320, 68740), (350, 62848), (400, 54992), (448, 49100), (491, 44800), (560, 39280), (640, 34370), (700, 31424), (800, 27496), (896, 24550), (982, 22400), (1120, 19640), (1280, 17185), (1400, 15712), (1600, 13748), (1792, 12275), (1964, 11200), (2240, 9820), (2455, 8960), (2800, 7856), (3200, 6874), (3437, 6400), (3928, 5600), (4480, 4910)]