13120675840

素因数分解:

$2^{13}\times 5^1\times {\mathrm{320329}}^1$

素因数の和:320360

約数の個数: 56

約数和(自身を含む): 31487798340

約数和(自身を除く): 18367122500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 8192, 10240, 20480, 40960, 320329, 640658, 1281316, 1601645, 2562632, 3203290, 5125264, 6406580, 10250528, 12813160, 20501056, 25626320, 41002112, 51252640, 82004224, 102505280, 164008448, 205010560, 328016896, 410021120, 656033792, 820042240, 1312067584, 1640084480, 2624135168, 3280168960, 6560337920, 13120675840]

約数ペア:

[(1, 13120675840), (2, 6560337920), (4, 3280168960), (5, 2624135168), (8, 1640084480), (10, 1312067584), (16, 820042240), (20, 656033792), (32, 410021120), (40, 328016896), (64, 205010560), (80, 164008448), (128, 102505280), (160, 82004224), (256, 51252640), (320, 41002112), (512, 25626320), (640, 20501056), (1024, 12813160), (1280, 10250528), (2048, 6406580), (2560, 5125264), (4096, 3203290), (5120, 2562632), (8192, 1601645), (10240, 1281316), (20480, 640658), (40960, 320329)]