256791456

素因数分解:

$2^5\times 3^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:435

約数の個数: 144

約数和(自身を含む): 760451328

約数和(自身を除く): 503659872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 47, 48, 61, 72, 94, 96, 122, 141, 144, 183, 188, 244, 282, 288, 311, 366, 376, 423, 488, 549, 564, 622, 732, 752, 846, 933, 976, 1098, 1128, 1244, 1464, 1504, 1692, 1866, 1952, 2196, 2256, 2488, 2799, 2867, 2928, 3384, 3732, 4392, 4512, 4976, 5598, 5734, 5856, 6768, 7464, 8601, 8784, 9952, 11196, 11468, 13536, 14617, 14928, 17202, 17568, 18971, 22392, 22936, 25803, 29234, 29856, 34404, 37942, 43851, 44784, 45872, 51606, 56913, 58468, 68808, 75884, 87702, 89568, 91744, 103212, 113826, 116936, 131553, 137616, 151768, 170739, 175404, 206424, 227652, 233872, 263106, 275232, 303536, 341478, 350808, 412848, 455304, 467744, 526212, 607072, 682956, 701616, 825696, 891637, 910608, 1052424, 1365912, 1403232, 1783274, 1821216, 2104848, 2674911, 2731824, 3566548, 4209696, 5349822, 5463648, 7133096, 8024733, 10699644, 14266192, 16049466, 21399288, 28532384, 32098932, 42798576, 64197864, 85597152, 128395728, 256791456]

約数ペア:

[(1, 256791456), (2, 128395728), (3, 85597152), (4, 64197864), (6, 42798576), (8, 32098932), (9, 28532384), (12, 21399288), (16, 16049466), (18, 14266192), (24, 10699644), (32, 8024733), (36, 7133096), (47, 5463648), (48, 5349822), (61, 4209696), (72, 3566548), (94, 2731824), (96, 2674911), (122, 2104848), (141, 1821216), (144, 1783274), (183, 1403232), (188, 1365912), (244, 1052424), (282, 910608), (288, 891637), (311, 825696), (366, 701616), (376, 682956), (423, 607072), (488, 526212), (549, 467744), (564, 455304), (622, 412848), (732, 350808), (752, 341478), (846, 303536), (933, 275232), (976, 263106), (1098, 233872), (1128, 227652), (1244, 206424), (1464, 175404), (1504, 170739), (1692, 151768), (1866, 137616), (1952, 131553), (2196, 116936), (2256, 113826), (2488, 103212), (2799, 91744), (2867, 89568), (2928, 87702), (3384, 75884), (3732, 68808), (4392, 58468), (4512, 56913), (4976, 51606), (5598, 45872), (5734, 44784), (5856, 43851), (6768, 37942), (7464, 34404), (8601, 29856), (8784, 29234), (9952, 25803), (11196, 22936), (11468, 22392), (13536, 18971), (14617, 17568), (14928, 17202)]