68518840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:401

約数の個数: 128

約数和(自身を含む): 183980160

約数和(自身を除く): 115461320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 23, 26, 34, 40, 46, 52, 65, 68, 85, 92, 104, 115, 130, 136, 170, 184, 221, 230, 260, 299, 337, 340, 391, 442, 460, 520, 598, 674, 680, 782, 884, 920, 1105, 1196, 1348, 1495, 1564, 1685, 1768, 1955, 2210, 2392, 2696, 2990, 3128, 3370, 3910, 4381, 4420, 5083, 5729, 5980, 6740, 7751, 7820, 8762, 8840, 10166, 11458, 11960, 13480, 15502, 15640, 17524, 20332, 21905, 22916, 25415, 28645, 31004, 35048, 38755, 40664, 43810, 45832, 50830, 57290, 62008, 74477, 77510, 87620, 100763, 101660, 114580, 131767, 148954, 155020, 175240, 201526, 203320, 229160, 263534, 297908, 310040, 372385, 403052, 503815, 527068, 595816, 658835, 744770, 806104, 1007630, 1054136, 1317670, 1489540, 1712971, 2015260, 2635340, 2979080, 3425942, 4030520, 5270680, 6851884, 8564855, 13703768, 17129710, 34259420, 68518840]

約数ペア:

[(1, 68518840), (2, 34259420), (4, 17129710), (5, 13703768), (8, 8564855), (10, 6851884), (13, 5270680), (17, 4030520), (20, 3425942), (23, 2979080), (26, 2635340), (34, 2015260), (40, 1712971), (46, 1489540), (52, 1317670), (65, 1054136), (68, 1007630), (85, 806104), (92, 744770), (104, 658835), (115, 595816), (130, 527068), (136, 503815), (170, 403052), (184, 372385), (221, 310040), (230, 297908), (260, 263534), (299, 229160), (337, 203320), (340, 201526), (391, 175240), (442, 155020), (460, 148954), (520, 131767), (598, 114580), (674, 101660), (680, 100763), (782, 87620), (884, 77510), (920, 74477), (1105, 62008), (1196, 57290), (1348, 50830), (1495, 45832), (1564, 43810), (1685, 40664), (1768, 38755), (1955, 35048), (2210, 31004), (2392, 28645), (2696, 25415), (2990, 22916), (3128, 21905), (3370, 20332), (3910, 17524), (4381, 15640), (4420, 15502), (5083, 13480), (5729, 11960), (5980, 11458), (6740, 10166), (7751, 8840), (7820, 8762)]