20994900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1489}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 62079360

約数和(自身を除く): 41084460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 60, 75, 94, 100, 141, 150, 188, 235, 282, 300, 470, 564, 705, 940, 1175, 1410, 1489, 2350, 2820, 2978, 3525, 4467, 4700, 5956, 7050, 7445, 8934, 14100, 14890, 17868, 22335, 29780, 37225, 44670, 69983, 74450, 89340, 111675, 139966, 148900, 209949, 223350, 279932, 349915, 419898, 446700, 699830, 839796, 1049745, 1399660, 1749575, 2099490, 3499150, 4198980, 5248725, 6998300, 10497450, 20994900]

約数ペア:

[(1, 20994900), (2, 10497450), (3, 6998300), (4, 5248725), (5, 4198980), (6, 3499150), (10, 2099490), (12, 1749575), (15, 1399660), (20, 1049745), (25, 839796), (30, 699830), (47, 446700), (50, 419898), (60, 349915), (75, 279932), (94, 223350), (100, 209949), (141, 148900), (150, 139966), (188, 111675), (235, 89340), (282, 74450), (300, 69983), (470, 44670), (564, 37225), (705, 29780), (940, 22335), (1175, 17868), (1410, 14890), (1489, 14100), (2350, 8934), (2820, 7445), (2978, 7050), (3525, 5956), (4467, 4700)]