289199920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{631}}^1$

素因数の和:998

約数の個数: 80

約数和(自身を含む): 715186368

約数和(自身を除く): 425986448

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 337, 340, 631, 674, 680, 1262, 1348, 1360, 1685, 2524, 2696, 3155, 3370, 5048, 5392, 5729, 6310, 6740, 10096, 10727, 11458, 12620, 13480, 21454, 22916, 25240, 26960, 28645, 42908, 45832, 50480, 53635, 57290, 85816, 91664, 107270, 114580, 171632, 212647, 214540, 229160, 425294, 429080, 458320, 850588, 858160, 1063235, 1701176, 2126470, 3402352, 3614999, 4252940, 7229998, 8505880, 14459996, 17011760, 18074995, 28919992, 36149990, 57839984, 72299980, 144599960, 289199920]

約数ペア:

[(1, 289199920), (2, 144599960), (4, 72299980), (5, 57839984), (8, 36149990), (10, 28919992), (16, 18074995), (17, 17011760), (20, 14459996), (34, 8505880), (40, 7229998), (68, 4252940), (80, 3614999), (85, 3402352), (136, 2126470), (170, 1701176), (272, 1063235), (337, 858160), (340, 850588), (631, 458320), (674, 429080), (680, 425294), (1262, 229160), (1348, 214540), (1360, 212647), (1685, 171632), (2524, 114580), (2696, 107270), (3155, 91664), (3370, 85816), (5048, 57290), (5392, 53635), (5729, 50480), (6310, 45832), (6740, 42908), (10096, 28645), (10727, 26960), (11458, 25240), (12620, 22916), (13480, 21454)]