212740245

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4079}}^1$

素因数の和:4170

約数の個数: 48

約数和(自身を含む): 394617600

約数和(自身を除く): 181877355

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 61, 95, 171, 183, 285, 305, 549, 855, 915, 1159, 2745, 3477, 4079, 5795, 10431, 12237, 17385, 20395, 36711, 52155, 61185, 77501, 183555, 232503, 248819, 387505, 697509, 746457, 1162515, 1244095, 2239371, 3487545, 3732285, 4727561, 11196855, 14182683, 23637805, 42548049, 70913415, 212740245]

約数ペア:

[(1, 212740245), (3, 70913415), (5, 42548049), (9, 23637805), (15, 14182683), (19, 11196855), (45, 4727561), (57, 3732285), (61, 3487545), (95, 2239371), (171, 1244095), (183, 1162515), (285, 746457), (305, 697509), (549, 387505), (855, 248819), (915, 232503), (1159, 183555), (2745, 77501), (3477, 61185), (4079, 52155), (5795, 36711), (10431, 20395), (12237, 17385)]