20680380

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{5471}}^1$

素因数の和:5496

約数の個数: 96

約数和(自身を含む): 73543680

約数和(自身を除く): 52863300

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 84, 90, 105, 108, 126, 135, 140, 180, 189, 210, 252, 270, 315, 378, 420, 540, 630, 756, 945, 1260, 1890, 3780, 5471, 10942, 16413, 21884, 27355, 32826, 38297, 49239, 54710, 65652, 76594, 82065, 98478, 109420, 114891, 147717, 153188, 164130, 191485, 196956, 229782, 246195, 295434, 328260, 344673, 382970, 459564, 492390, 574455, 590868, 689346, 738585, 765940, 984780, 1034019, 1148910, 1378692, 1477170, 1723365, 2068038, 2297820, 2954340, 3446730, 4136076, 5170095, 6893460, 10340190, 20680380]

約数ペア:

[(1, 20680380), (2, 10340190), (3, 6893460), (4, 5170095), (5, 4136076), (6, 3446730), (7, 2954340), (9, 2297820), (10, 2068038), (12, 1723365), (14, 1477170), (15, 1378692), (18, 1148910), (20, 1034019), (21, 984780), (27, 765940), (28, 738585), (30, 689346), (35, 590868), (36, 574455), (42, 492390), (45, 459564), (54, 382970), (60, 344673), (63, 328260), (70, 295434), (84, 246195), (90, 229782), (105, 196956), (108, 191485), (126, 164130), (135, 153188), (140, 147717), (180, 114891), (189, 109420), (210, 98478), (252, 82065), (270, 76594), (315, 65652), (378, 54710), (420, 49239), (540, 38297), (630, 32826), (756, 27355), (945, 21884), (1260, 16413), (1890, 10942), (3780, 5471)]