251993005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:837

約数の個数: 32

約数和(自身を含む): 339095808

約数和(自身を除く): 87102803

約数列:

[1, 5, 11, 53, 55, 137, 265, 583, 631, 685, 1507, 2915, 3155, 6941, 7261, 7535, 33443, 34705, 36305, 79871, 86447, 167215, 367873, 399355, 432235, 950917, 1839365, 4581691, 4754585, 22908455, 50398601, 251993005]

約数ペア:

[(1, 251993005), (5, 50398601), (11, 22908455), (53, 4754585), (55, 4581691), (137, 1839365), (265, 950917), (583, 432235), (631, 399355), (685, 367873), (1507, 167215), (2915, 86447), (3155, 79871), (6941, 36305), (7261, 34705), (7535, 33443)]