21539200

素因数分解:

$2^7\times 5^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 54639360

約数和(自身を除く): 33100160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 53, 64, 80, 100, 106, 127, 128, 160, 200, 212, 254, 265, 320, 400, 424, 508, 530, 635, 640, 800, 848, 1016, 1060, 1270, 1325, 1600, 1696, 2032, 2120, 2540, 2650, 3175, 3200, 3392, 4064, 4240, 5080, 5300, 6350, 6731, 6784, 8128, 8480, 10160, 10600, 12700, 13462, 16256, 16960, 20320, 21200, 25400, 26924, 33655, 33920, 40640, 42400, 50800, 53848, 67310, 81280, 84800, 101600, 107696, 134620, 168275, 169600, 203200, 215392, 269240, 336550, 406400, 430784, 538480, 673100, 861568, 1076960, 1346200, 2153920, 2692400, 4307840, 5384800, 10769600, 21539200]

約数ペア:

[(1, 21539200), (2, 10769600), (4, 5384800), (5, 4307840), (8, 2692400), (10, 2153920), (16, 1346200), (20, 1076960), (25, 861568), (32, 673100), (40, 538480), (50, 430784), (53, 406400), (64, 336550), (80, 269240), (100, 215392), (106, 203200), (127, 169600), (128, 168275), (160, 134620), (200, 107696), (212, 101600), (254, 84800), (265, 81280), (320, 67310), (400, 53848), (424, 50800), (508, 42400), (530, 40640), (635, 33920), (640, 33655), (800, 26924), (848, 25400), (1016, 21200), (1060, 20320), (1270, 16960), (1325, 16256), (1600, 13462), (1696, 12700), (2032, 10600), (2120, 10160), (2540, 8480), (2650, 8128), (3175, 6784), (3200, 6731), (3392, 6350), (4064, 5300), (4240, 5080)]