209921880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1926

約数の個数: 192

約数和(自身を含む): 771552000

約数和(自身を除く): 561630120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 49, 56, 57, 60, 70, 76, 84, 95, 98, 105, 114, 120, 133, 140, 147, 152, 168, 190, 196, 210, 228, 245, 266, 280, 285, 294, 380, 392, 399, 420, 456, 490, 532, 570, 588, 665, 735, 760, 798, 840, 931, 980, 1064, 1140, 1176, 1330, 1470, 1596, 1862, 1879, 1960, 1995, 2280, 2660, 2793, 2940, 3192, 3724, 3758, 3990, 4655, 5320, 5586, 5637, 5880, 7448, 7516, 7980, 9310, 9395, 11172, 11274, 13153, 13965, 15032, 15960, 18620, 18790, 22344, 22548, 26306, 27930, 28185, 35701, 37240, 37580, 39459, 45096, 52612, 55860, 56370, 65765, 71402, 75160, 78918, 92071, 105224, 107103, 111720, 112740, 131530, 142804, 157836, 178505, 184142, 197295, 214206, 225480, 249907, 263060, 276213, 285608, 315672, 357010, 368284, 394590, 428412, 460355, 499814, 526120, 535515, 552426, 714020, 736568, 749721, 789180, 856824, 920710, 999628, 1071030, 1104852, 1249535, 1381065, 1428040, 1499442, 1578360, 1749349, 1841420, 1999256, 2142060, 2209704, 2499070, 2762130, 2998884, 3498698, 3682840, 3748605, 4284120, 4998140, 5248047, 5524260, 5997768, 6997396, 7497210, 8746745, 9996280, 10496094, 11048520, 13994792, 14994420, 17493490, 20992188, 26240235, 29988840, 34986980, 41984376, 52480470, 69973960, 104960940, 209921880]

約数ペア:

[(1, 209921880), (2, 104960940), (3, 69973960), (4, 52480470), (5, 41984376), (6, 34986980), (7, 29988840), (8, 26240235), (10, 20992188), (12, 17493490), (14, 14994420), (15, 13994792), (19, 11048520), (20, 10496094), (21, 9996280), (24, 8746745), (28, 7497210), (30, 6997396), (35, 5997768), (38, 5524260), (40, 5248047), (42, 4998140), (49, 4284120), (56, 3748605), (57, 3682840), (60, 3498698), (70, 2998884), (76, 2762130), (84, 2499070), (95, 2209704), (98, 2142060), (105, 1999256), (114, 1841420), (120, 1749349), (133, 1578360), (140, 1499442), (147, 1428040), (152, 1381065), (168, 1249535), (190, 1104852), (196, 1071030), (210, 999628), (228, 920710), (245, 856824), (266, 789180), (280, 749721), (285, 736568), (294, 714020), (380, 552426), (392, 535515), (399, 526120), (420, 499814), (456, 460355), (490, 428412), (532, 394590), (570, 368284), (588, 357010), (665, 315672), (735, 285608), (760, 276213), (798, 263060), (840, 249907), (931, 225480), (980, 214206), (1064, 197295), (1140, 184142), (1176, 178505), (1330, 157836), (1470, 142804), (1596, 131530), (1862, 112740), (1879, 111720), (1960, 107103), (1995, 105224), (2280, 92071), (2660, 78918), (2793, 75160), (2940, 71402), (3192, 65765), (3724, 56370), (3758, 55860), (3990, 52612), (4655, 45096), (5320, 39459), (5586, 37580), (5637, 37240), (5880, 35701), (7448, 28185), (7516, 27930), (7980, 26306), (9310, 22548), (9395, 22344), (11172, 18790), (11274, 18620), (13153, 15960), (13965, 15032)]