18723954080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{391387}}^1$

素因数の和:391438

約数の個数: 96

約数和(自身を含む): 49709407104

約数和(自身を除く): 30985453024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 65, 80, 92, 104, 115, 130, 160, 184, 208, 230, 260, 299, 368, 416, 460, 520, 598, 736, 920, 1040, 1196, 1495, 1840, 2080, 2392, 2990, 3680, 4784, 5980, 9568, 11960, 23920, 47840, 391387, 782774, 1565548, 1956935, 3131096, 3913870, 5088031, 6262192, 7827740, 9001901, 10176062, 12524384, 15655480, 18003802, 20352124, 25440155, 31310960, 36007604, 40704248, 45009505, 50880310, 62621920, 72015208, 81408496, 90019010, 101760620, 117024713, 144030416, 162816992, 180038020, 203521240, 234049426, 288060832, 360076040, 407042480, 468098852, 585123565, 720152080, 814084960, 936197704, 1170247130, 1440304160, 1872395408, 2340494260, 3744790816, 4680988520, 9361977040, 18723954080]

約数ペア:

[(1, 18723954080), (2, 9361977040), (4, 4680988520), (5, 3744790816), (8, 2340494260), (10, 1872395408), (13, 1440304160), (16, 1170247130), (20, 936197704), (23, 814084960), (26, 720152080), (32, 585123565), (40, 468098852), (46, 407042480), (52, 360076040), (65, 288060832), (80, 234049426), (92, 203521240), (104, 180038020), (115, 162816992), (130, 144030416), (160, 117024713), (184, 101760620), (208, 90019010), (230, 81408496), (260, 72015208), (299, 62621920), (368, 50880310), (416, 45009505), (460, 40704248), (520, 36007604), (598, 31310960), (736, 25440155), (920, 20352124), (1040, 18003802), (1196, 15655480), (1495, 12524384), (1840, 10176062), (2080, 9001901), (2392, 7827740), (2990, 6262192), (3680, 5088031), (4784, 3913870), (5980, 3131096), (9568, 1956935), (11960, 1565548), (23920, 782774), (47840, 391387)]