20790611200

素因数分解:

$2^8\times 5^2\times {\mathrm{127}}^1\times {\mathrm{25579}}^1$

素因数の和:25732

約数の個数: 108

約数和(自身を含む): 51867235840

約数和(自身を除く): 31076624640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 256, 320, 400, 508, 635, 640, 800, 1016, 1270, 1280, 1600, 2032, 2540, 3175, 3200, 4064, 5080, 6350, 6400, 8128, 10160, 12700, 16256, 20320, 25400, 25579, 32512, 40640, 50800, 51158, 81280, 101600, 102316, 127895, 162560, 203200, 204632, 255790, 406400, 409264, 511580, 639475, 812800, 818528, 1023160, 1278950, 1637056, 2046320, 2557900, 3248533, 3274112, 4092640, 5115800, 6497066, 6548224, 8185280, 10231600, 12994132, 16242665, 16370560, 20463200, 25988264, 32485330, 32741120, 40926400, 51976528, 64970660, 81213325, 81852800, 103953056, 129941320, 162426650, 163705600, 207906112, 259882640, 324853300, 415812224, 519765280, 649706600, 831624448, 1039530560, 1299413200, 2079061120, 2598826400, 4158122240, 5197652800, 10395305600, 20790611200]

約数ペア:

[(1, 20790611200), (2, 10395305600), (4, 5197652800), (5, 4158122240), (8, 2598826400), (10, 2079061120), (16, 1299413200), (20, 1039530560), (25, 831624448), (32, 649706600), (40, 519765280), (50, 415812224), (64, 324853300), (80, 259882640), (100, 207906112), (127, 163705600), (128, 162426650), (160, 129941320), (200, 103953056), (254, 81852800), (256, 81213325), (320, 64970660), (400, 51976528), (508, 40926400), (635, 32741120), (640, 32485330), (800, 25988264), (1016, 20463200), (1270, 16370560), (1280, 16242665), (1600, 12994132), (2032, 10231600), (2540, 8185280), (3175, 6548224), (3200, 6497066), (4064, 5115800), (5080, 4092640), (6350, 3274112), (6400, 3248533), (8128, 2557900), (10160, 2046320), (12700, 1637056), (16256, 1278950), (20320, 1023160), (25400, 818528), (25579, 812800), (32512, 639475), (40640, 511580), (50800, 409264), (51158, 406400), (81280, 255790), (101600, 204632), (102316, 203200), (127895, 162560)]