638997120

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{36979}}^1$

素因数の和:37007

約数の個数: 128

約数和(自身を含む): 2263176000

約数和(自身を除く): 1624178880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1440, 1728, 1920, 2160, 2880, 3456, 4320, 5760, 8640, 17280, 36979, 73958, 110937, 147916, 184895, 221874, 295832, 332811, 369790, 443748, 554685, 591664, 665622, 739580, 887496, 998433, 1109370, 1183328, 1331244, 1479160, 1664055, 1774992, 1996866, 2218740, 2366656, 2662488, 2958320, 3328110, 3549984, 3993732, 4437480, 4733312, 4992165, 5324976, 5916640, 6656220, 7099968, 7987464, 8874960, 9984330, 10649952, 11833280, 13312440, 14199936, 15974928, 17749920, 19968660, 21299904, 23666560, 26624880, 31949856, 35499840, 39937320, 42599808, 53249760, 63899712, 70999680, 79874640, 106499520, 127799424, 159749280, 212999040, 319498560, 638997120]

約数ペア:

[(1, 638997120), (2, 319498560), (3, 212999040), (4, 159749280), (5, 127799424), (6, 106499520), (8, 79874640), (9, 70999680), (10, 63899712), (12, 53249760), (15, 42599808), (16, 39937320), (18, 35499840), (20, 31949856), (24, 26624880), (27, 23666560), (30, 21299904), (32, 19968660), (36, 17749920), (40, 15974928), (45, 14199936), (48, 13312440), (54, 11833280), (60, 10649952), (64, 9984330), (72, 8874960), (80, 7987464), (90, 7099968), (96, 6656220), (108, 5916640), (120, 5324976), (128, 4992165), (135, 4733312), (144, 4437480), (160, 3993732), (180, 3549984), (192, 3328110), (216, 2958320), (240, 2662488), (270, 2366656), (288, 2218740), (320, 1996866), (360, 1774992), (384, 1664055), (432, 1479160), (480, 1331244), (540, 1183328), (576, 1109370), (640, 998433), (720, 887496), (864, 739580), (960, 665622), (1080, 591664), (1152, 554685), (1440, 443748), (1728, 369790), (1920, 332811), (2160, 295832), (2880, 221874), (3456, 184895), (4320, 147916), (5760, 110937), (8640, 73958), (17280, 36979)]