81145920

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{467}}^1$

素因数の和:668

約数の個数: 112

約数和(自身を含む): 259616448

約数和(自身を除く): 178470528

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, 160, 181, 192, 240, 320, 362, 467, 480, 543, 724, 905, 934, 960, 1086, 1401, 1448, 1810, 1868, 2172, 2335, 2715, 2802, 2896, 3620, 3736, 4344, 4670, 5430, 5604, 5792, 7005, 7240, 7472, 8688, 9340, 10860, 11208, 11584, 14010, 14480, 14944, 17376, 18680, 21720, 22416, 28020, 28960, 29888, 34752, 37360, 43440, 44832, 56040, 57920, 74720, 84527, 86880, 89664, 112080, 149440, 169054, 173760, 224160, 253581, 338108, 422635, 448320, 507162, 676216, 845270, 1014324, 1267905, 1352432, 1690540, 2028648, 2535810, 2704864, 3381080, 4057296, 5071620, 5409728, 6762160, 8114592, 10143240, 13524320, 16229184, 20286480, 27048640, 40572960, 81145920]

約数ペア:

[(1, 81145920), (2, 40572960), (3, 27048640), (4, 20286480), (5, 16229184), (6, 13524320), (8, 10143240), (10, 8114592), (12, 6762160), (15, 5409728), (16, 5071620), (20, 4057296), (24, 3381080), (30, 2704864), (32, 2535810), (40, 2028648), (48, 1690540), (60, 1352432), (64, 1267905), (80, 1014324), (96, 845270), (120, 676216), (160, 507162), (181, 448320), (192, 422635), (240, 338108), (320, 253581), (362, 224160), (467, 173760), (480, 169054), (543, 149440), (724, 112080), (905, 89664), (934, 86880), (960, 84527), (1086, 74720), (1401, 57920), (1448, 56040), (1810, 44832), (1868, 43440), (2172, 37360), (2335, 34752), (2715, 29888), (2802, 28960), (2896, 28020), (3620, 22416), (3736, 21720), (4344, 18680), (4670, 17376), (5430, 14944), (5604, 14480), (5792, 14010), (7005, 11584), (7240, 11208), (7472, 10860), (8688, 9340)]