2021219720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{8081}}^1$

素因数の和:8155

約数の個数: 96

約数和(自身を含む): 5058200520

約数和(自身を除く): 3036980800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 169, 185, 260, 296, 338, 370, 481, 520, 676, 740, 845, 962, 1352, 1480, 1690, 1924, 2405, 3380, 3848, 4810, 6253, 6760, 8081, 9620, 12506, 16162, 19240, 25012, 31265, 32324, 40405, 50024, 62530, 64648, 80810, 105053, 125060, 161620, 210106, 250120, 298997, 323240, 420212, 525265, 597994, 840424, 1050530, 1195988, 1365689, 1494985, 2101060, 2391976, 2731378, 2989970, 3886961, 4202120, 5462756, 5979940, 6828445, 7773922, 10925512, 11959880, 13656890, 15547844, 19434805, 27313780, 31095688, 38869610, 50530493, 54627560, 77739220, 101060986, 155478440, 202121972, 252652465, 404243944, 505304930, 1010609860, 2021219720]

約数ペア:

[(1, 2021219720), (2, 1010609860), (4, 505304930), (5, 404243944), (8, 252652465), (10, 202121972), (13, 155478440), (20, 101060986), (26, 77739220), (37, 54627560), (40, 50530493), (52, 38869610), (65, 31095688), (74, 27313780), (104, 19434805), (130, 15547844), (148, 13656890), (169, 11959880), (185, 10925512), (260, 7773922), (296, 6828445), (338, 5979940), (370, 5462756), (481, 4202120), (520, 3886961), (676, 2989970), (740, 2731378), (845, 2391976), (962, 2101060), (1352, 1494985), (1480, 1365689), (1690, 1195988), (1924, 1050530), (2405, 840424), (3380, 597994), (3848, 525265), (4810, 420212), (6253, 323240), (6760, 298997), (8081, 250120), (9620, 210106), (12506, 161620), (16162, 125060), (19240, 105053), (25012, 80810), (31265, 64648), (32324, 62530), (40405, 50024)]