67686400

素因数分解:

$2^{12}\times 5^2\times {\mathrm{661}}^1$

素因数の和:695

約数の個数: 78

約数和(自身を含む): 168095702

約数和(自身を除く): 100409302

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 661, 800, 1024, 1280, 1322, 1600, 2048, 2560, 2644, 3200, 3305, 4096, 5120, 5288, 6400, 6610, 10240, 10576, 12800, 13220, 16525, 20480, 21152, 25600, 26440, 33050, 42304, 51200, 52880, 66100, 84608, 102400, 105760, 132200, 169216, 211520, 264400, 338432, 423040, 528800, 676864, 846080, 1057600, 1353728, 1692160, 2115200, 2707456, 3384320, 4230400, 6768640, 8460800, 13537280, 16921600, 33843200, 67686400]

約数ペア:

[(1, 67686400), (2, 33843200), (4, 16921600), (5, 13537280), (8, 8460800), (10, 6768640), (16, 4230400), (20, 3384320), (25, 2707456), (32, 2115200), (40, 1692160), (50, 1353728), (64, 1057600), (80, 846080), (100, 676864), (128, 528800), (160, 423040), (200, 338432), (256, 264400), (320, 211520), (400, 169216), (512, 132200), (640, 105760), (661, 102400), (800, 84608), (1024, 66100), (1280, 52880), (1322, 51200), (1600, 42304), (2048, 33050), (2560, 26440), (2644, 25600), (3200, 21152), (3305, 20480), (4096, 16525), (5120, 13220), (5288, 12800), (6400, 10576), (6610, 10240)]