1291264

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:130

約数の個数: 44

約数和(自身を含む): 2808484

約数和(自身を除く): 1517220

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 128, 194, 208, 256, 388, 416, 512, 776, 832, 1024, 1261, 1552, 1664, 2522, 3104, 3328, 5044, 6208, 6656, 10088, 12416, 13312, 20176, 24832, 40352, 49664, 80704, 99328, 161408, 322816, 645632, 1291264]

約数ペア:

[(1, 1291264), (2, 645632), (4, 322816), (8, 161408), (13, 99328), (16, 80704), (26, 49664), (32, 40352), (52, 24832), (64, 20176), (97, 13312), (104, 12416), (128, 10088), (194, 6656), (208, 6208), (256, 5044), (388, 3328), (416, 3104), (512, 2522), (776, 1664), (832, 1552), (1024, 1261)]