257587928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{733}}^1$

素因数の和:892

約数の個数: 64

約数和(自身を含む): 542572800

約数和(自身を除く): 284984872

約数列:

[1, 2, 4, 8, 13, 26, 31, 52, 62, 104, 109, 124, 218, 248, 403, 436, 733, 806, 872, 1417, 1466, 1612, 2834, 2932, 3224, 3379, 5668, 5864, 6758, 9529, 11336, 13516, 19058, 22723, 27032, 38116, 43927, 45446, 76232, 79897, 87854, 90892, 159794, 175708, 181784, 295399, 319588, 351416, 590798, 639176, 1038661, 1181596, 2077322, 2363192, 2476807, 4154644, 4953614, 8309288, 9907228, 19814456, 32198491, 64396982, 128793964, 257587928]

約数ペア:

[(1, 257587928), (2, 128793964), (4, 64396982), (8, 32198491), (13, 19814456), (26, 9907228), (31, 8309288), (52, 4953614), (62, 4154644), (104, 2476807), (109, 2363192), (124, 2077322), (218, 1181596), (248, 1038661), (403, 639176), (436, 590798), (733, 351416), (806, 319588), (872, 295399), (1417, 181784), (1466, 175708), (1612, 159794), (2834, 90892), (2932, 87854), (3224, 79897), (3379, 76232), (5668, 45446), (5864, 43927), (6758, 38116), (9529, 27032), (11336, 22723), (13516, 19058)]