639506196

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{18257}}^1$

素因数の和:18413

約数の個数: 72

約数和(自身を含む): 1860855360

約数和(自身を除く): 1221349164

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 139, 252, 278, 417, 556, 834, 973, 1251, 1668, 1946, 2502, 2919, 3892, 5004, 5838, 8757, 11676, 17514, 18257, 35028, 36514, 54771, 73028, 109542, 127799, 164313, 219084, 255598, 328626, 383397, 511196, 657252, 766794, 1150191, 1533588, 2300382, 2537723, 4600764, 5075446, 7613169, 10150892, 15226338, 17764061, 22839507, 30452676, 35528122, 45679014, 53292183, 71056244, 91358028, 106584366, 159876549, 213168732, 319753098, 639506196]

約数ペア:

[(1, 639506196), (2, 319753098), (3, 213168732), (4, 159876549), (6, 106584366), (7, 91358028), (9, 71056244), (12, 53292183), (14, 45679014), (18, 35528122), (21, 30452676), (28, 22839507), (36, 17764061), (42, 15226338), (63, 10150892), (84, 7613169), (126, 5075446), (139, 4600764), (252, 2537723), (278, 2300382), (417, 1533588), (556, 1150191), (834, 766794), (973, 657252), (1251, 511196), (1668, 383397), (1946, 328626), (2502, 255598), (2919, 219084), (3892, 164313), (5004, 127799), (5838, 109542), (8757, 73028), (11676, 54771), (17514, 36514), (18257, 35028)]