257821256

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^2\times {\mathrm{149}}^1$

素因数の和:279

約数の個数: 96

約数和(自身を含む): 618408000

約数和(自身を除く): 360586744

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 53, 56, 77, 88, 106, 149, 154, 212, 298, 308, 371, 424, 583, 596, 616, 742, 1043, 1166, 1192, 1484, 1639, 2086, 2332, 2809, 2968, 3278, 4081, 4172, 4664, 5618, 6556, 7897, 8162, 8344, 11236, 11473, 13112, 15794, 16324, 19663, 22472, 22946, 30899, 31588, 32648, 39326, 45892, 55279, 61798, 63176, 78652, 86867, 91784, 110558, 123596, 157304, 173734, 216293, 221116, 247192, 347468, 418541, 432586, 442232, 608069, 694936, 837082, 865172, 1216138, 1674164, 1730344, 2432276, 2929787, 3348328, 4603951, 4864552, 5859574, 9207902, 11719148, 18415804, 23438296, 32227657, 36831608, 64455314, 128910628, 257821256]

約数ペア:

[(1, 257821256), (2, 128910628), (4, 64455314), (7, 36831608), (8, 32227657), (11, 23438296), (14, 18415804), (22, 11719148), (28, 9207902), (44, 5859574), (53, 4864552), (56, 4603951), (77, 3348328), (88, 2929787), (106, 2432276), (149, 1730344), (154, 1674164), (212, 1216138), (298, 865172), (308, 837082), (371, 694936), (424, 608069), (583, 442232), (596, 432586), (616, 418541), (742, 347468), (1043, 247192), (1166, 221116), (1192, 216293), (1484, 173734), (1639, 157304), (2086, 123596), (2332, 110558), (2809, 91784), (2968, 86867), (3278, 78652), (4081, 63176), (4172, 61798), (4664, 55279), (5618, 45892), (6556, 39326), (7897, 32648), (8162, 31588), (8344, 30899), (11236, 22946), (11473, 22472), (13112, 19663), (15794, 16324)]