20408764144

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{1087}}^1\times {\mathrm{19237}}^1$

素因数の和:20393

約数の個数: 40

約数和(自身を含む): 40229274368

約数和(自身を除く): 19820510224

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 1087, 2174, 4348, 8696, 17392, 19237, 38474, 66307, 76948, 132614, 153896, 265228, 307792, 530456, 1060912, 1173457, 2346914, 4693828, 9387656, 18775312, 20910619, 41821238, 83642476, 167284952, 334569904, 1275547759, 2551095518, 5102191036, 10204382072, 20408764144]

約数ペア:

[(1, 20408764144), (2, 10204382072), (4, 5102191036), (8, 2551095518), (16, 1275547759), (61, 334569904), (122, 167284952), (244, 83642476), (488, 41821238), (976, 20910619), (1087, 18775312), (2174, 9387656), (4348, 4693828), (8696, 2346914), (17392, 1173457), (19237, 1060912), (38474, 530456), (66307, 307792), (76948, 265228), (132614, 153896)]