284807040

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{21191}}^1$

素因数の和:21220

約数の個数: 128

約数和(自身を含む): 1037560320

約数和(自身を除く): 752753280

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, 21191, 42382, 63573, 84764, 105955, 127146, 148337, 169528, 211910, 254292, 296674, 317865, 339056, 423820, 445011, 508584, 593348, 635730, 678112, 741685, 847640, 890022, 1017168, 1186696, 1271460, 1356224, 1483370, 1695280, 1780044, 2034336, 2225055, 2373392, 2542920, 2712448, 2966740, 3390560, 3560088, 4068672, 4450110, 4746784, 5085840, 5933480, 6781120, 7120176, 8137344, 8900220, 9493568, 10171680, 11866960, 13562240, 14240352, 17800440, 18987136, 20343360, 23733920, 28480704, 35600880, 40686720, 47467840, 56961408, 71201760, 94935680, 142403520, 284807040]

約数ペア:

[(1, 284807040), (2, 142403520), (3, 94935680), (4, 71201760), (5, 56961408), (6, 47467840), (7, 40686720), (8, 35600880), (10, 28480704), (12, 23733920), (14, 20343360), (15, 18987136), (16, 17800440), (20, 14240352), (21, 13562240), (24, 11866960), (28, 10171680), (30, 9493568), (32, 8900220), (35, 8137344), (40, 7120176), (42, 6781120), (48, 5933480), (56, 5085840), (60, 4746784), (64, 4450110), (70, 4068672), (80, 3560088), (84, 3390560), (96, 2966740), (105, 2712448), (112, 2542920), (120, 2373392), (128, 2225055), (140, 2034336), (160, 1780044), (168, 1695280), (192, 1483370), (210, 1356224), (224, 1271460), (240, 1186696), (280, 1017168), (320, 890022), (336, 847640), (384, 741685), (420, 678112), (448, 635730), (480, 593348), (560, 508584), (640, 445011), (672, 423820), (840, 339056), (896, 317865), (960, 296674), (1120, 254292), (1344, 211910), (1680, 169528), (1920, 148337), (2240, 127146), (2688, 105955), (3360, 84764), (4480, 63573), (6720, 42382), (13440, 21191)]