25405020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2663}}^1$

素因数の和:2731

約数の個数: 72

約数和(自身を含む): 78545376

約数和(自身を除く): 53140356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 2663, 3180, 4770, 5326, 7989, 9540, 10652, 13315, 15978, 23967, 26630, 31956, 39945, 47934, 53260, 79890, 95868, 119835, 141139, 159780, 239670, 282278, 423417, 479340, 564556, 705695, 846834, 1270251, 1411390, 1693668, 2117085, 2540502, 2822780, 4234170, 5081004, 6351255, 8468340, 12702510, 25405020]

約数ペア:

[(1, 25405020), (2, 12702510), (3, 8468340), (4, 6351255), (5, 5081004), (6, 4234170), (9, 2822780), (10, 2540502), (12, 2117085), (15, 1693668), (18, 1411390), (20, 1270251), (30, 846834), (36, 705695), (45, 564556), (53, 479340), (60, 423417), (90, 282278), (106, 239670), (159, 159780), (180, 141139), (212, 119835), (265, 95868), (318, 79890), (477, 53260), (530, 47934), (636, 39945), (795, 31956), (954, 26630), (1060, 23967), (1590, 15978), (1908, 13315), (2385, 10652), (2663, 9540), (3180, 7989), (4770, 5326)]