20470450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1$

素因数の和:452

約数の個数: 96

約数和(自身を含む): 51246720

約数和(自身を除く): 30776270

約数列:

[1, 2, 5, 7, 10, 11, 13, 14, 22, 25, 26, 35, 50, 55, 65, 70, 77, 91, 110, 130, 143, 154, 175, 182, 275, 286, 325, 350, 385, 409, 455, 550, 650, 715, 770, 818, 910, 1001, 1430, 1925, 2002, 2045, 2275, 2863, 3575, 3850, 4090, 4499, 4550, 5005, 5317, 5726, 7150, 8998, 10010, 10225, 10634, 14315, 20450, 22495, 25025, 26585, 28630, 31493, 37219, 44990, 50050, 53170, 58487, 62986, 71575, 74438, 112475, 116974, 132925, 143150, 157465, 186095, 224950, 265850, 292435, 314930, 372190, 409409, 584870, 787325, 818818, 930475, 1462175, 1574650, 1860950, 2047045, 2924350, 4094090, 10235225, 20470450]

約数ペア:

[(1, 20470450), (2, 10235225), (5, 4094090), (7, 2924350), (10, 2047045), (11, 1860950), (13, 1574650), (14, 1462175), (22, 930475), (25, 818818), (26, 787325), (35, 584870), (50, 409409), (55, 372190), (65, 314930), (70, 292435), (77, 265850), (91, 224950), (110, 186095), (130, 157465), (143, 143150), (154, 132925), (175, 116974), (182, 112475), (275, 74438), (286, 71575), (325, 62986), (350, 58487), (385, 53170), (409, 50050), (455, 44990), (550, 37219), (650, 31493), (715, 28630), (770, 26585), (818, 25025), (910, 22495), (1001, 20450), (1430, 14315), (1925, 10634), (2002, 10225), (2045, 10010), (2275, 8998), (2863, 7150), (3575, 5726), (3850, 5317), (4090, 5005), (4499, 4550)]