21000288200

素因数分解:

$2^3\times 5^2\times {\mathrm{127}}^1\times {\mathrm{826783}}^1$

素因数の和:826926

約数の個数: 48

約数和(自身を含む): 49210183680

約数和(自身を除く): 28209895480

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 127, 200, 254, 508, 635, 1016, 1270, 2540, 3175, 5080, 6350, 12700, 25400, 826783, 1653566, 3307132, 4133915, 6614264, 8267830, 16535660, 20669575, 33071320, 41339150, 82678300, 105001441, 165356600, 210002882, 420005764, 525007205, 840011528, 1050014410, 2100028820, 2625036025, 4200057640, 5250072050, 10500144100, 21000288200]

約数ペア:

[(1, 21000288200), (2, 10500144100), (4, 5250072050), (5, 4200057640), (8, 2625036025), (10, 2100028820), (20, 1050014410), (25, 840011528), (40, 525007205), (50, 420005764), (100, 210002882), (127, 165356600), (200, 105001441), (254, 82678300), (508, 41339150), (635, 33071320), (1016, 20669575), (1270, 16535660), (2540, 8267830), (3175, 6614264), (5080, 4133915), (6350, 3307132), (12700, 1653566), (25400, 826783)]