1286502400

素因数分解:

$2^{11}\times 5^2\times {\mathrm{25127}}^1$

素因数の和:25159

約数の個数: 72

約数和(自身を含む): 3189873960

約数和(自身を除く): 1903371560

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, 800, 1024, 1280, 1600, 2048, 2560, 3200, 5120, 6400, 10240, 12800, 25127, 25600, 50254, 51200, 100508, 125635, 201016, 251270, 402032, 502540, 628175, 804064, 1005080, 1256350, 1608128, 2010160, 2512700, 3216256, 4020320, 5025400, 6432512, 8040640, 10050800, 12865024, 16081280, 20101600, 25730048, 32162560, 40203200, 51460096, 64325120, 80406400, 128650240, 160812800, 257300480, 321625600, 643251200, 1286502400]

約数ペア:

[(1, 1286502400), (2, 643251200), (4, 321625600), (5, 257300480), (8, 160812800), (10, 128650240), (16, 80406400), (20, 64325120), (25, 51460096), (32, 40203200), (40, 32162560), (50, 25730048), (64, 20101600), (80, 16081280), (100, 12865024), (128, 10050800), (160, 8040640), (200, 6432512), (256, 5025400), (320, 4020320), (400, 3216256), (512, 2512700), (640, 2010160), (800, 1608128), (1024, 1256350), (1280, 1005080), (1600, 804064), (2048, 628175), (2560, 502540), (3200, 402032), (5120, 251270), (6400, 201016), (10240, 125635), (12800, 100508), (25127, 51200), (25600, 50254)]