278839680

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{20747}}^1$

素因数の和:20776

約数の個数: 128

約数和(自身を含む): 1015822080

約数和(自身を除く): 736982400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 20747, 41494, 62241, 82988, 103735, 124482, 145229, 165976, 207470, 248964, 290458, 311205, 331952, 414940, 435687, 497928, 580916, 622410, 663904, 726145, 829880, 871374, 995856, 1161832, 1244820, 1327808, 1452290, 1659760, 1742748, 1991712, 2178435, 2323664, 2489640, 2655616, 2904580, 3319520, 3485496, 3983424, 4356870, 4647328, 4979280, 5809160, 6639040, 6970992, 7966848, 8713740, 9294656, 9958560, 11618320, 13278080, 13941984, 17427480, 18589312, 19917120, 23236640, 27883968, 34854960, 39834240, 46473280, 55767936, 69709920, 92946560, 139419840, 278839680]

約数ペア:

[(1, 278839680), (2, 139419840), (3, 92946560), (4, 69709920), (5, 55767936), (6, 46473280), (7, 39834240), (8, 34854960), (10, 27883968), (12, 23236640), (14, 19917120), (15, 18589312), (16, 17427480), (20, 13941984), (21, 13278080), (24, 11618320), (28, 9958560), (30, 9294656), (32, 8713740), (35, 7966848), (40, 6970992), (42, 6639040), (48, 5809160), (56, 4979280), (60, 4647328), (64, 4356870), (70, 3983424), (80, 3485496), (84, 3319520), (96, 2904580), (105, 2655616), (112, 2489640), (120, 2323664), (128, 2178435), (140, 1991712), (160, 1742748), (168, 1659760), (192, 1452290), (210, 1327808), (224, 1244820), (240, 1161832), (280, 995856), (320, 871374), (336, 829880), (384, 726145), (420, 663904), (448, 622410), (480, 580916), (560, 497928), (640, 435687), (672, 414940), (840, 331952), (896, 311205), (960, 290458), (1120, 248964), (1344, 207470), (1680, 165976), (1920, 145229), (2240, 124482), (2688, 103735), (3360, 82988), (4480, 62241), (6720, 41494), (13440, 20747)]