81373440

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{21191}}^1$

素因数の和:21215

約数の個数: 72

約数和(自身を含む): 259898688

約数和(自身を除く): 178525248

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 21191, 42382, 63573, 84764, 105955, 127146, 169528, 211910, 254292, 317865, 339056, 423820, 508584, 635730, 678112, 847640, 1017168, 1271460, 1356224, 1695280, 2034336, 2542920, 2712448, 3390560, 4068672, 5085840, 5424896, 6781120, 8137344, 10171680, 13562240, 16274688, 20343360, 27124480, 40686720, 81373440]

約数ペア:

[(1, 81373440), (2, 40686720), (3, 27124480), (4, 20343360), (5, 16274688), (6, 13562240), (8, 10171680), (10, 8137344), (12, 6781120), (15, 5424896), (16, 5085840), (20, 4068672), (24, 3390560), (30, 2712448), (32, 2542920), (40, 2034336), (48, 1695280), (60, 1356224), (64, 1271460), (80, 1017168), (96, 847640), (120, 678112), (128, 635730), (160, 508584), (192, 423820), (240, 339056), (256, 317865), (320, 254292), (384, 211910), (480, 169528), (640, 127146), (768, 105955), (960, 84764), (1280, 63573), (1920, 42382), (3840, 21191)]