257015928

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1031}}^1$

素因数の和:1117

約数の個数: 128

約数和(自身を含む): 748984320

約数和(自身を除く): 491968392

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 47, 51, 52, 68, 78, 94, 102, 104, 136, 141, 156, 188, 204, 221, 282, 312, 376, 408, 442, 564, 611, 663, 799, 884, 1031, 1128, 1222, 1326, 1598, 1768, 1833, 2062, 2397, 2444, 2652, 3093, 3196, 3666, 4124, 4794, 4888, 5304, 6186, 6392, 7332, 8248, 9588, 10387, 12372, 13403, 14664, 17527, 19176, 20774, 24744, 26806, 31161, 35054, 40209, 41548, 48457, 52581, 53612, 62322, 70108, 80418, 83096, 96914, 105162, 107224, 124644, 140216, 145371, 160836, 193828, 210324, 227851, 249288, 290742, 321672, 387656, 420648, 455702, 581484, 629941, 683553, 823769, 911404, 1162968, 1259882, 1367106, 1647538, 1822808, 1889823, 2471307, 2519764, 2734212, 3295076, 3779646, 4942614, 5039528, 5468424, 6590152, 7559292, 9885228, 10708997, 15118584, 19770456, 21417994, 32126991, 42835988, 64253982, 85671976, 128507964, 257015928]

約数ペア:

[(1, 257015928), (2, 128507964), (3, 85671976), (4, 64253982), (6, 42835988), (8, 32126991), (12, 21417994), (13, 19770456), (17, 15118584), (24, 10708997), (26, 9885228), (34, 7559292), (39, 6590152), (47, 5468424), (51, 5039528), (52, 4942614), (68, 3779646), (78, 3295076), (94, 2734212), (102, 2519764), (104, 2471307), (136, 1889823), (141, 1822808), (156, 1647538), (188, 1367106), (204, 1259882), (221, 1162968), (282, 911404), (312, 823769), (376, 683553), (408, 629941), (442, 581484), (564, 455702), (611, 420648), (663, 387656), (799, 321672), (884, 290742), (1031, 249288), (1128, 227851), (1222, 210324), (1326, 193828), (1598, 160836), (1768, 145371), (1833, 140216), (2062, 124644), (2397, 107224), (2444, 105162), (2652, 96914), (3093, 83096), (3196, 80418), (3666, 70108), (4124, 62322), (4794, 53612), (4888, 52581), (5304, 48457), (6186, 41548), (6392, 40209), (7332, 35054), (8248, 31161), (9588, 26806), (10387, 24744), (12372, 20774), (13403, 19176), (14664, 17527)]