28353728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:721

約数の個数: 56

約数和(自身を含む): 61831728

約数和(自身を除く): 33478000

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 64, 104, 106, 208, 212, 416, 424, 643, 689, 832, 848, 1286, 1378, 1696, 2572, 2756, 3392, 5144, 5512, 8359, 10288, 11024, 16718, 20576, 22048, 33436, 34079, 41152, 44096, 66872, 68158, 133744, 136316, 267488, 272632, 443027, 534976, 545264, 886054, 1090528, 1772108, 2181056, 3544216, 7088432, 14176864, 28353728]

約数ペア:

[(1, 28353728), (2, 14176864), (4, 7088432), (8, 3544216), (13, 2181056), (16, 1772108), (26, 1090528), (32, 886054), (52, 545264), (53, 534976), (64, 443027), (104, 272632), (106, 267488), (208, 136316), (212, 133744), (416, 68158), (424, 66872), (643, 44096), (689, 41152), (832, 34079), (848, 33436), (1286, 22048), (1378, 20576), (1696, 16718), (2572, 11024), (2756, 10288), (3392, 8359), (5144, 5512)]