256778522

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{251}}^1$

素因数の和:364

約数の個数: 96

約数和(自身を含む): 535719744

約数和(自身を除く): 278941222

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 49, 73, 77, 91, 98, 143, 146, 154, 182, 251, 286, 502, 511, 539, 637, 803, 949, 1001, 1022, 1078, 1274, 1606, 1757, 1898, 2002, 2761, 3263, 3514, 3577, 5522, 5621, 6526, 6643, 7007, 7154, 10439, 11242, 12299, 13286, 14014, 18323, 19327, 20878, 22841, 24598, 35893, 36646, 38654, 39347, 45682, 46501, 71786, 73073, 78694, 93002, 128261, 135289, 146146, 159887, 201553, 238199, 251251, 256522, 270578, 319774, 403106, 476398, 502502, 511511, 897827, 1023022, 1410871, 1667393, 1758757, 1795654, 2620189, 2821742, 3334786, 3517514, 5240378, 9876097, 11671751, 18341323, 19752194, 23343502, 36682646, 128389261, 256778522]

約数ペア:

[(1, 256778522), (2, 128389261), (7, 36682646), (11, 23343502), (13, 19752194), (14, 18341323), (22, 11671751), (26, 9876097), (49, 5240378), (73, 3517514), (77, 3334786), (91, 2821742), (98, 2620189), (143, 1795654), (146, 1758757), (154, 1667393), (182, 1410871), (251, 1023022), (286, 897827), (502, 511511), (511, 502502), (539, 476398), (637, 403106), (803, 319774), (949, 270578), (1001, 256522), (1022, 251251), (1078, 238199), (1274, 201553), (1606, 159887), (1757, 146146), (1898, 135289), (2002, 128261), (2761, 93002), (3263, 78694), (3514, 73073), (3577, 71786), (5522, 46501), (5621, 45682), (6526, 39347), (6643, 38654), (7007, 36646), (7154, 35893), (10439, 24598), (11242, 22841), (12299, 20878), (13286, 19327), (14014, 18323)]