51389440

素因数分解:

$2^{10}\times 5^1\times {\mathrm{10037}}^1$

素因数の和:10062

約数の個数: 44

約数和(自身を含む): 123286716

約数和(自身を除く): 71897276

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 10037, 20074, 40148, 50185, 80296, 100370, 160592, 200740, 321184, 401480, 642368, 802960, 1284736, 1605920, 2569472, 3211840, 5138944, 6423680, 10277888, 12847360, 25694720, 51389440]

約数ペア:

[(1, 51389440), (2, 25694720), (4, 12847360), (5, 10277888), (8, 6423680), (10, 5138944), (16, 3211840), (20, 2569472), (32, 1605920), (40, 1284736), (64, 802960), (80, 642368), (128, 401480), (160, 321184), (256, 200740), (320, 160592), (512, 100370), (640, 80296), (1024, 50185), (1280, 40148), (2560, 20074), (5120, 10037)]