66252800

素因数分解:

$2^{12}\times 5^2\times {\mathrm{647}}^1$

素因数の和:681

約数の個数: 78

約数和(自身を含む): 164540808

約数和(自身を除く): 98288008

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, 647, 800, 1024, 1280, 1294, 1600, 2048, 2560, 2588, 3200, 3235, 4096, 5120, 5176, 6400, 6470, 10240, 10352, 12800, 12940, 16175, 20480, 20704, 25600, 25880, 32350, 41408, 51200, 51760, 64700, 82816, 102400, 103520, 129400, 165632, 207040, 258800, 331264, 414080, 517600, 662528, 828160, 1035200, 1325056, 1656320, 2070400, 2650112, 3312640, 4140800, 6625280, 8281600, 13250560, 16563200, 33126400, 66252800]

約数ペア:

[(1, 66252800), (2, 33126400), (4, 16563200), (5, 13250560), (8, 8281600), (10, 6625280), (16, 4140800), (20, 3312640), (25, 2650112), (32, 2070400), (40, 1656320), (50, 1325056), (64, 1035200), (80, 828160), (100, 662528), (128, 517600), (160, 414080), (200, 331264), (256, 258800), (320, 207040), (400, 165632), (512, 129400), (640, 103520), (647, 102400), (800, 82816), (1024, 64700), (1280, 51760), (1294, 51200), (1600, 41408), (2048, 32350), (2560, 25880), (2588, 25600), (3200, 20704), (3235, 20480), (4096, 16175), (5120, 12940), (5176, 12800), (6400, 10352), (6470, 10240)]