639889920

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{27773}}^1$

素因数の和:27802

約数の個数: 120

約数和(自身を含む): 2216198556

約数和(自身を除く): 1576308636

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, 27773, 55546, 83319, 111092, 138865, 166638, 222184, 249957, 277730, 333276, 416595, 444368, 499914, 555460, 666552, 833190, 888736, 999828, 1110920, 1249785, 1333104, 1666380, 1777472, 1999656, 2221840, 2499570, 2666208, 3332760, 3554944, 3999312, 4443680, 4999140, 5332416, 6665520, 7109888, 7998624, 8887360, 9998280, 10664832, 13331040, 14219776, 15997248, 17774720, 19996560, 21329664, 26662080, 31994496, 35549440, 39993120, 42659328, 53324160, 63988992, 71098880, 79986240, 106648320, 127977984, 159972480, 213296640, 319944960, 639889920]

約数ペア:

[(1, 639889920), (2, 319944960), (3, 213296640), (4, 159972480), (5, 127977984), (6, 106648320), (8, 79986240), (9, 71098880), (10, 63988992), (12, 53324160), (15, 42659328), (16, 39993120), (18, 35549440), (20, 31994496), (24, 26662080), (30, 21329664), (32, 19996560), (36, 17774720), (40, 15997248), (45, 14219776), (48, 13331040), (60, 10664832), (64, 9998280), (72, 8887360), (80, 7998624), (90, 7109888), (96, 6665520), (120, 5332416), (128, 4999140), (144, 4443680), (160, 3999312), (180, 3554944), (192, 3332760), (240, 2666208), (256, 2499570), (288, 2221840), (320, 1999656), (360, 1777472), (384, 1666380), (480, 1333104), (512, 1249785), (576, 1110920), (640, 999828), (720, 888736), (768, 833190), (960, 666552), (1152, 555460), (1280, 499914), (1440, 444368), (1536, 416595), (1920, 333276), (2304, 277730), (2560, 249957), (2880, 222184), (3840, 166638), (4608, 138865), (5760, 111092), (7680, 83319), (11520, 55546), (23040, 27773)]