51781120

素因数分解:

$2^9\times 5^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 80

約数和(自身を含む): 125951760

約数和(自身を除く): 74170640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 128, 160, 179, 226, 256, 320, 358, 452, 512, 565, 640, 716, 895, 904, 1130, 1280, 1432, 1790, 1808, 2260, 2560, 2864, 3580, 3616, 4520, 5728, 7160, 7232, 9040, 11456, 14320, 14464, 18080, 20227, 22912, 28640, 28928, 36160, 40454, 45824, 57280, 57856, 72320, 80908, 91648, 101135, 114560, 144640, 161816, 202270, 229120, 289280, 323632, 404540, 458240, 647264, 809080, 1294528, 1618160, 2589056, 3236320, 5178112, 6472640, 10356224, 12945280, 25890560, 51781120]

約数ペア:

[(1, 51781120), (2, 25890560), (4, 12945280), (5, 10356224), (8, 6472640), (10, 5178112), (16, 3236320), (20, 2589056), (32, 1618160), (40, 1294528), (64, 809080), (80, 647264), (113, 458240), (128, 404540), (160, 323632), (179, 289280), (226, 229120), (256, 202270), (320, 161816), (358, 144640), (452, 114560), (512, 101135), (565, 91648), (640, 80908), (716, 72320), (895, 57856), (904, 57280), (1130, 45824), (1280, 40454), (1432, 36160), (1790, 28928), (1808, 28640), (2260, 22912), (2560, 20227), (2864, 18080), (3580, 14464), (3616, 14320), (4520, 11456), (5728, 9040), (7160, 7232)]