21818880

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{947}}^1$

素因数の和:976

約数の個数: 120

約数和(自身を含む): 75644712

約数和(自身を除く): 53825832

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 947, 960, 1152, 1280, 1440, 1536, 1894, 1920, 2304, 2560, 2841, 2880, 3788, 3840, 4608, 4735, 5682, 5760, 7576, 7680, 8523, 9470, 11364, 11520, 14205, 15152, 17046, 18940, 22728, 23040, 28410, 30304, 34092, 37880, 42615, 45456, 56820, 60608, 68184, 75760, 85230, 90912, 113640, 121216, 136368, 151520, 170460, 181824, 227280, 242432, 272736, 303040, 340920, 363648, 454560, 484864, 545472, 606080, 681840, 727296, 909120, 1090944, 1212160, 1363680, 1454592, 1818240, 2181888, 2424320, 2727360, 3636480, 4363776, 5454720, 7272960, 10909440, 21818880]

約数ペア:

[(1, 21818880), (2, 10909440), (3, 7272960), (4, 5454720), (5, 4363776), (6, 3636480), (8, 2727360), (9, 2424320), (10, 2181888), (12, 1818240), (15, 1454592), (16, 1363680), (18, 1212160), (20, 1090944), (24, 909120), (30, 727296), (32, 681840), (36, 606080), (40, 545472), (45, 484864), (48, 454560), (60, 363648), (64, 340920), (72, 303040), (80, 272736), (90, 242432), (96, 227280), (120, 181824), (128, 170460), (144, 151520), (160, 136368), (180, 121216), (192, 113640), (240, 90912), (256, 85230), (288, 75760), (320, 68184), (360, 60608), (384, 56820), (480, 45456), (512, 42615), (576, 37880), (640, 34092), (720, 30304), (768, 28410), (947, 23040), (960, 22728), (1152, 18940), (1280, 17046), (1440, 15152), (1536, 14205), (1894, 11520), (1920, 11364), (2304, 9470), (2560, 8523), (2841, 7680), (2880, 7576), (3788, 5760), (3840, 5682), (4608, 4735)]