20918400

素因数分解:

$2^7\times 3^1\times 5^2\times {\mathrm{2179}}^1$

素因数の和:2206

約数の個数: 96

約数和(自身を含む): 68931600

約数和(自身を除く): 48013200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 300, 320, 384, 400, 480, 600, 640, 800, 960, 1200, 1600, 1920, 2179, 2400, 3200, 4358, 4800, 6537, 8716, 9600, 10895, 13074, 17432, 21790, 26148, 32685, 34864, 43580, 52296, 54475, 65370, 69728, 87160, 104592, 108950, 130740, 139456, 163425, 174320, 209184, 217900, 261480, 278912, 326850, 348640, 418368, 435800, 522960, 653700, 697280, 836736, 871600, 1045920, 1307400, 1394560, 1743200, 2091840, 2614800, 3486400, 4183680, 5229600, 6972800, 10459200, 20918400]

約数ペア:

[(1, 20918400), (2, 10459200), (3, 6972800), (4, 5229600), (5, 4183680), (6, 3486400), (8, 2614800), (10, 2091840), (12, 1743200), (15, 1394560), (16, 1307400), (20, 1045920), (24, 871600), (25, 836736), (30, 697280), (32, 653700), (40, 522960), (48, 435800), (50, 418368), (60, 348640), (64, 326850), (75, 278912), (80, 261480), (96, 217900), (100, 209184), (120, 174320), (128, 163425), (150, 139456), (160, 130740), (192, 108950), (200, 104592), (240, 87160), (300, 69728), (320, 65370), (384, 54475), (400, 52296), (480, 43580), (600, 34864), (640, 32685), (800, 26148), (960, 21790), (1200, 17432), (1600, 13074), (1920, 10895), (2179, 9600), (2400, 8716), (3200, 6537), (4358, 4800)]