81902080

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:166

約数の個数: 160

約数和(自身を含む): 222735744

約数和(自身を除く): 140833664

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 107, 115, 128, 130, 160, 184, 208, 214, 230, 256, 260, 299, 320, 368, 416, 428, 460, 512, 520, 535, 598, 640, 736, 832, 856, 920, 1040, 1070, 1196, 1280, 1391, 1472, 1495, 1664, 1712, 1840, 2080, 2140, 2392, 2461, 2560, 2782, 2944, 2990, 3328, 3424, 3680, 4160, 4280, 4784, 4922, 5564, 5888, 5980, 6656, 6848, 6955, 7360, 8320, 8560, 9568, 9844, 11128, 11776, 11960, 12305, 13696, 13910, 14720, 16640, 17120, 19136, 19688, 22256, 23920, 24610, 27392, 27820, 29440, 31993, 33280, 34240, 38272, 39376, 44512, 47840, 49220, 54784, 55640, 58880, 63986, 68480, 76544, 78752, 89024, 95680, 98440, 111280, 127972, 136960, 153088, 157504, 159965, 178048, 191360, 196880, 222560, 255944, 273920, 315008, 319930, 356096, 382720, 393760, 445120, 511888, 630016, 639860, 712192, 765440, 787520, 890240, 1023776, 1260032, 1279720, 1575040, 1780480, 2047552, 2559440, 3150080, 3560960, 4095104, 5118880, 6300160, 8190208, 10237760, 16380416, 20475520, 40951040, 81902080]

約数ペア:

[(1, 81902080), (2, 40951040), (4, 20475520), (5, 16380416), (8, 10237760), (10, 8190208), (13, 6300160), (16, 5118880), (20, 4095104), (23, 3560960), (26, 3150080), (32, 2559440), (40, 2047552), (46, 1780480), (52, 1575040), (64, 1279720), (65, 1260032), (80, 1023776), (92, 890240), (104, 787520), (107, 765440), (115, 712192), (128, 639860), (130, 630016), (160, 511888), (184, 445120), (208, 393760), (214, 382720), (230, 356096), (256, 319930), (260, 315008), (299, 273920), (320, 255944), (368, 222560), (416, 196880), (428, 191360), (460, 178048), (512, 159965), (520, 157504), (535, 153088), (598, 136960), (640, 127972), (736, 111280), (832, 98440), (856, 95680), (920, 89024), (1040, 78752), (1070, 76544), (1196, 68480), (1280, 63986), (1391, 58880), (1472, 55640), (1495, 54784), (1664, 49220), (1712, 47840), (1840, 44512), (2080, 39376), (2140, 38272), (2392, 34240), (2461, 33280), (2560, 31993), (2782, 29440), (2944, 27820), (2990, 27392), (3328, 24610), (3424, 23920), (3680, 22256), (4160, 19688), (4280, 19136), (4784, 17120), (4922, 16640), (5564, 14720), (5888, 13910), (5980, 13696), (6656, 12305), (6848, 11960), (6955, 11776), (7360, 11128), (8320, 9844), (8560, 9568)]