1988605440

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{86311}}^1$

素因数の和:86340

約数の個数: 120

約数和(自身を含む): 6887179728

約数和(自身を除く): 4898574288

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, 960, 1152, 1280, 1440, 1536, 1920, 2304, 2560, 2880, 3840, 4608, 5760, 7680, 11520, 23040, 86311, 172622, 258933, 345244, 431555, 517866, 690488, 776799, 863110, 1035732, 1294665, 1380976, 1553598, 1726220, 2071464, 2589330, 2761952, 3107196, 3452440, 3883995, 4142928, 5178660, 5523904, 6214392, 6904880, 7767990, 8285856, 10357320, 11047808, 12428784, 13809760, 15535980, 16571712, 20714640, 22095616, 24857568, 27619520, 31071960, 33143424, 41429280, 44191232, 49715136, 55239040, 62143920, 66286848, 82858560, 99430272, 110478080, 124287840, 132573696, 165717120, 198860544, 220956160, 248575680, 331434240, 397721088, 497151360, 662868480, 994302720, 1988605440]

約数ペア:

[(1, 1988605440), (2, 994302720), (3, 662868480), (4, 497151360), (5, 397721088), (6, 331434240), (8, 248575680), (9, 220956160), (10, 198860544), (12, 165717120), (15, 132573696), (16, 124287840), (18, 110478080), (20, 99430272), (24, 82858560), (30, 66286848), (32, 62143920), (36, 55239040), (40, 49715136), (45, 44191232), (48, 41429280), (60, 33143424), (64, 31071960), (72, 27619520), (80, 24857568), (90, 22095616), (96, 20714640), (120, 16571712), (128, 15535980), (144, 13809760), (160, 12428784), (180, 11047808), (192, 10357320), (240, 8285856), (256, 7767990), (288, 6904880), (320, 6214392), (360, 5523904), (384, 5178660), (480, 4142928), (512, 3883995), (576, 3452440), (640, 3107196), (720, 2761952), (768, 2589330), (960, 2071464), (1152, 1726220), (1280, 1553598), (1440, 1380976), (1536, 1294665), (1920, 1035732), (2304, 863110), (2560, 776799), (2880, 690488), (3840, 517866), (4608, 431555), (5760, 345244), (7680, 258933), (11520, 172622), (23040, 86311)]