20550075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3011}}^1$

素因数の和:3044

約数の個数: 48

約数和(自身を含む): 41830656

約数和(自身を除く): 21280581

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 105, 175, 195, 273, 325, 455, 525, 975, 1365, 2275, 3011, 6825, 9033, 15055, 21077, 39143, 45165, 63231, 75275, 105385, 117429, 195715, 225825, 274001, 316155, 526925, 587145, 822003, 978575, 1370005, 1580775, 2935725, 4110015, 6850025, 20550075]

約数ペア:

[(1, 20550075), (3, 6850025), (5, 4110015), (7, 2935725), (13, 1580775), (15, 1370005), (21, 978575), (25, 822003), (35, 587145), (39, 526925), (65, 316155), (75, 274001), (91, 225825), (105, 195715), (175, 117429), (195, 105385), (273, 75275), (325, 63231), (455, 45165), (525, 39143), (975, 21077), (1365, 15055), (2275, 9033), (3011, 6825)]