21656600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 59520000

約数和(自身を除く): 37863400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 140, 155, 175, 200, 217, 248, 280, 310, 350, 434, 499, 620, 700, 775, 868, 998, 1085, 1240, 1400, 1550, 1736, 1996, 2170, 2495, 3100, 3493, 3992, 4340, 4990, 5425, 6200, 6986, 8680, 9980, 10850, 12475, 13972, 15469, 17465, 19960, 21700, 24950, 27944, 30938, 34930, 43400, 49900, 61876, 69860, 77345, 87325, 99800, 108283, 123752, 139720, 154690, 174650, 216566, 309380, 349300, 386725, 433132, 541415, 618760, 698600, 773450, 866264, 1082830, 1546900, 2165660, 2707075, 3093800, 4331320, 5414150, 10828300, 21656600]

約数ペア:

[(1, 21656600), (2, 10828300), (4, 5414150), (5, 4331320), (7, 3093800), (8, 2707075), (10, 2165660), (14, 1546900), (20, 1082830), (25, 866264), (28, 773450), (31, 698600), (35, 618760), (40, 541415), (50, 433132), (56, 386725), (62, 349300), (70, 309380), (100, 216566), (124, 174650), (140, 154690), (155, 139720), (175, 123752), (200, 108283), (217, 99800), (248, 87325), (280, 77345), (310, 69860), (350, 61876), (434, 49900), (499, 43400), (620, 34930), (700, 30938), (775, 27944), (868, 24950), (998, 21700), (1085, 19960), (1240, 17465), (1400, 15469), (1550, 13972), (1736, 12475), (1996, 10850), (2170, 9980), (2495, 8680), (3100, 6986), (3493, 6200), (3992, 5425), (4340, 4990)]