21678900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:713

約数の個数: 72

約数和(自身を含む): 63329280

約数和(自身を除く): 41650380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 127, 150, 254, 300, 381, 508, 569, 635, 762, 1138, 1270, 1524, 1707, 1905, 2276, 2540, 2845, 3175, 3414, 3810, 5690, 6350, 6828, 7620, 8535, 9525, 11380, 12700, 14225, 17070, 19050, 28450, 34140, 38100, 42675, 56900, 72263, 85350, 144526, 170700, 216789, 289052, 361315, 433578, 722630, 867156, 1083945, 1445260, 1806575, 2167890, 3613150, 4335780, 5419725, 7226300, 10839450, 21678900]

約数ペア:

[(1, 21678900), (2, 10839450), (3, 7226300), (4, 5419725), (5, 4335780), (6, 3613150), (10, 2167890), (12, 1806575), (15, 1445260), (20, 1083945), (25, 867156), (30, 722630), (50, 433578), (60, 361315), (75, 289052), (100, 216789), (127, 170700), (150, 144526), (254, 85350), (300, 72263), (381, 56900), (508, 42675), (569, 38100), (635, 34140), (762, 28450), (1138, 19050), (1270, 17070), (1524, 14225), (1707, 12700), (1905, 11380), (2276, 9525), (2540, 8535), (2845, 7620), (3175, 6828), (3414, 6350), (3810, 5690)]