1245117728

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{2131}}^1$

素因数の和:2222

約数の個数: 72

約数和(自身を含む): 2667515760

約数和(自身を除く): 1422398032

約数列:

[1, 2, 4, 8, 16, 19, 31, 32, 38, 62, 76, 124, 152, 248, 304, 496, 589, 608, 961, 992, 1178, 1922, 2131, 2356, 3844, 4262, 4712, 7688, 8524, 9424, 15376, 17048, 18259, 18848, 30752, 34096, 36518, 40489, 66061, 68192, 73036, 80978, 132122, 146072, 161956, 264244, 292144, 323912, 528488, 584288, 647824, 1056976, 1255159, 1295648, 2047891, 2113952, 2510318, 4095782, 5020636, 8191564, 10041272, 16383128, 20082544, 32766256, 38909929, 40165088, 65532512, 77819858, 155639716, 311279432, 622558864, 1245117728]

約数ペア:

[(1, 1245117728), (2, 622558864), (4, 311279432), (8, 155639716), (16, 77819858), (19, 65532512), (31, 40165088), (32, 38909929), (38, 32766256), (62, 20082544), (76, 16383128), (124, 10041272), (152, 8191564), (248, 5020636), (304, 4095782), (496, 2510318), (589, 2113952), (608, 2047891), (961, 1295648), (992, 1255159), (1178, 1056976), (1922, 647824), (2131, 584288), (2356, 528488), (3844, 323912), (4262, 292144), (4712, 264244), (7688, 161956), (8524, 146072), (9424, 132122), (15376, 80978), (17048, 73036), (18259, 68192), (18848, 66061), (30752, 40489), (34096, 36518)]