210123456

素因数分解:

$2^6\times 3^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:910

約数の個数: 112

約数和(自身を含む): 587947008

約数和(自身を除く): 377823552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 43, 48, 62, 64, 86, 93, 96, 124, 129, 172, 186, 192, 248, 258, 344, 372, 496, 516, 688, 744, 821, 992, 1032, 1333, 1376, 1488, 1642, 1984, 2064, 2463, 2666, 2752, 2976, 3284, 3999, 4128, 4926, 5332, 5952, 6568, 7998, 8256, 9852, 10664, 13136, 15996, 19704, 21328, 25451, 26272, 31992, 35303, 39408, 42656, 50902, 52544, 63984, 70606, 76353, 78816, 85312, 101804, 105909, 127968, 141212, 152706, 157632, 203608, 211818, 255936, 282424, 305412, 407216, 423636, 564848, 610824, 814432, 847272, 1094393, 1129696, 1221648, 1628864, 1694544, 2188786, 2259392, 2443296, 3283179, 3389088, 4377572, 4886592, 6566358, 6778176, 8755144, 13132716, 17510288, 26265432, 35020576, 52530864, 70041152, 105061728, 210123456]

約数ペア:

[(1, 210123456), (2, 105061728), (3, 70041152), (4, 52530864), (6, 35020576), (8, 26265432), (12, 17510288), (16, 13132716), (24, 8755144), (31, 6778176), (32, 6566358), (43, 4886592), (48, 4377572), (62, 3389088), (64, 3283179), (86, 2443296), (93, 2259392), (96, 2188786), (124, 1694544), (129, 1628864), (172, 1221648), (186, 1129696), (192, 1094393), (248, 847272), (258, 814432), (344, 610824), (372, 564848), (496, 423636), (516, 407216), (688, 305412), (744, 282424), (821, 255936), (992, 211818), (1032, 203608), (1333, 157632), (1376, 152706), (1488, 141212), (1642, 127968), (1984, 105909), (2064, 101804), (2463, 85312), (2666, 78816), (2752, 76353), (2976, 70606), (3284, 63984), (3999, 52544), (4128, 50902), (4926, 42656), (5332, 39408), (5952, 35303), (6568, 31992), (7998, 26272), (8256, 25451), (9852, 21328), (10664, 19704), (13136, 15996)]