81372160

素因数分解:

$2^{10}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:739

約数の個数: 88

約数和(自身を含む): 203979456

約数和(自身を除く): 122607296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 512, 640, 691, 736, 920, 1024, 1280, 1382, 1472, 1840, 2560, 2764, 2944, 3455, 3680, 5120, 5528, 5888, 6910, 7360, 11056, 11776, 13820, 14720, 15893, 22112, 23552, 27640, 29440, 31786, 44224, 55280, 58880, 63572, 79465, 88448, 110560, 117760, 127144, 158930, 176896, 221120, 254288, 317860, 353792, 442240, 508576, 635720, 707584, 884480, 1017152, 1271440, 1768960, 2034304, 2542880, 3537920, 4068608, 5085760, 8137216, 10171520, 16274432, 20343040, 40686080, 81372160]

約数ペア:

[(1, 81372160), (2, 40686080), (4, 20343040), (5, 16274432), (8, 10171520), (10, 8137216), (16, 5085760), (20, 4068608), (23, 3537920), (32, 2542880), (40, 2034304), (46, 1768960), (64, 1271440), (80, 1017152), (92, 884480), (115, 707584), (128, 635720), (160, 508576), (184, 442240), (230, 353792), (256, 317860), (320, 254288), (368, 221120), (460, 176896), (512, 158930), (640, 127144), (691, 117760), (736, 110560), (920, 88448), (1024, 79465), (1280, 63572), (1382, 58880), (1472, 55280), (1840, 44224), (2560, 31786), (2764, 29440), (2944, 27640), (3455, 23552), (3680, 22112), (5120, 15893), (5528, 14720), (5888, 13820), (6910, 11776), (7360, 11056)]