21388800

素因数分解:

$2^9\times 3^1\times 5^2\times {\mathrm{557}}^1$

素因数の和:588

約数の個数: 120

約数和(自身を含む): 70783416

約数和(自身を除く): 49394616

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, 256, 300, 320, 384, 400, 480, 512, 557, 600, 640, 768, 800, 960, 1114, 1200, 1280, 1536, 1600, 1671, 1920, 2228, 2400, 2560, 2785, 3200, 3342, 3840, 4456, 4800, 5570, 6400, 6684, 7680, 8355, 8912, 9600, 11140, 12800, 13368, 13925, 16710, 17824, 19200, 22280, 26736, 27850, 33420, 35648, 38400, 41775, 44560, 53472, 55700, 66840, 71296, 83550, 89120, 106944, 111400, 133680, 142592, 167100, 178240, 213888, 222800, 267360, 285184, 334200, 356480, 427776, 445600, 534720, 668400, 712960, 855552, 891200, 1069440, 1336800, 1425920, 1782400, 2138880, 2673600, 3564800, 4277760, 5347200, 7129600, 10694400, 21388800]

約数ペア:

[(1, 21388800), (2, 10694400), (3, 7129600), (4, 5347200), (5, 4277760), (6, 3564800), (8, 2673600), (10, 2138880), (12, 1782400), (15, 1425920), (16, 1336800), (20, 1069440), (24, 891200), (25, 855552), (30, 712960), (32, 668400), (40, 534720), (48, 445600), (50, 427776), (60, 356480), (64, 334200), (75, 285184), (80, 267360), (96, 222800), (100, 213888), (120, 178240), (128, 167100), (150, 142592), (160, 133680), (192, 111400), (200, 106944), (240, 89120), (256, 83550), (300, 71296), (320, 66840), (384, 55700), (400, 53472), (480, 44560), (512, 41775), (557, 38400), (600, 35648), (640, 33420), (768, 27850), (800, 26736), (960, 22280), (1114, 19200), (1200, 17824), (1280, 16710), (1536, 13925), (1600, 13368), (1671, 12800), (1920, 11140), (2228, 9600), (2400, 8912), (2560, 8355), (2785, 7680), (3200, 6684), (3342, 6400), (3840, 5570), (4456, 4800)]