28563555

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 51425280

約数和(自身を除く): 22861725

約数列:

[1, 3, 5, 15, 19, 31, 53, 57, 61, 93, 95, 155, 159, 183, 265, 285, 305, 465, 589, 795, 915, 1007, 1159, 1643, 1767, 1891, 2945, 3021, 3233, 3477, 4929, 5035, 5673, 5795, 8215, 8835, 9455, 9699, 15105, 16165, 17385, 24645, 28365, 31217, 35929, 48495, 61427, 93651, 100223, 107787, 156085, 179645, 184281, 300669, 307135, 468255, 501115, 538935, 921405, 1503345, 1904237, 5712711, 9521185, 28563555]

約数ペア:

[(1, 28563555), (3, 9521185), (5, 5712711), (15, 1904237), (19, 1503345), (31, 921405), (53, 538935), (57, 501115), (61, 468255), (93, 307135), (95, 300669), (155, 184281), (159, 179645), (183, 156085), (265, 107787), (285, 100223), (305, 93651), (465, 61427), (589, 48495), (795, 35929), (915, 31217), (1007, 28365), (1159, 24645), (1643, 17385), (1767, 16165), (1891, 15105), (2945, 9699), (3021, 9455), (3233, 8835), (3477, 8215), (4929, 5795), (5035, 5673)]