638804790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{41999}}^1$

素因数の和:42038

約数の個数: 72

約数和(自身を含む): 1798524000

約数和(自身を除く): 1159719210

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 169, 195, 234, 338, 390, 507, 585, 845, 1014, 1170, 1521, 1690, 2535, 3042, 5070, 7605, 15210, 41999, 83998, 125997, 209995, 251994, 377991, 419990, 545987, 629985, 755982, 1091974, 1259970, 1637961, 1889955, 2729935, 3275922, 3779910, 4913883, 5459870, 7097831, 8189805, 9827766, 14195662, 16379610, 21293493, 24569415, 35489155, 42586986, 49138830, 63880479, 70978310, 106467465, 127760958, 212934930, 319402395, 638804790]

約数ペア:

[(1, 638804790), (2, 319402395), (3, 212934930), (5, 127760958), (6, 106467465), (9, 70978310), (10, 63880479), (13, 49138830), (15, 42586986), (18, 35489155), (26, 24569415), (30, 21293493), (39, 16379610), (45, 14195662), (65, 9827766), (78, 8189805), (90, 7097831), (117, 5459870), (130, 4913883), (169, 3779910), (195, 3275922), (234, 2729935), (338, 1889955), (390, 1637961), (507, 1259970), (585, 1091974), (845, 755982), (1014, 629985), (1170, 545987), (1521, 419990), (1690, 377991), (2535, 251994), (3042, 209995), (5070, 125997), (7605, 83998), (15210, 41999)]