51161390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{263}}^1\times {\mathrm{397}}^1$

素因数の和:681

約数の個数: 48

約数和(自身を含む): 107803872

約数和(自身を除く): 56642482

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 263, 397, 490, 526, 794, 1315, 1841, 1985, 2630, 2779, 3682, 3970, 5558, 9205, 12887, 13895, 18410, 19453, 25774, 27790, 38906, 64435, 97265, 104411, 128870, 194530, 208822, 522055, 730877, 1044110, 1461754, 3654385, 5116139, 7308770, 10232278, 25580695, 51161390]

約数ペア:

[(1, 51161390), (2, 25580695), (5, 10232278), (7, 7308770), (10, 5116139), (14, 3654385), (35, 1461754), (49, 1044110), (70, 730877), (98, 522055), (245, 208822), (263, 194530), (397, 128870), (490, 104411), (526, 97265), (794, 64435), (1315, 38906), (1841, 27790), (1985, 25774), (2630, 19453), (2779, 18410), (3682, 13895), (3970, 12887), (5558, 9205)]