28757272

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{197}}^1\times {\mathrm{257}}^1$

素因数の和:531

約数の個数: 32

約数和(自身を含む): 55170720

約数和(自身を除く): 26413448

約数列:

[1, 2, 4, 8, 71, 142, 197, 257, 284, 394, 514, 568, 788, 1028, 1576, 2056, 13987, 18247, 27974, 36494, 50629, 55948, 72988, 101258, 111896, 145976, 202516, 405032, 3594659, 7189318, 14378636, 28757272]

約数ペア:

[(1, 28757272), (2, 14378636), (4, 7189318), (8, 3594659), (71, 405032), (142, 202516), (197, 145976), (257, 111896), (284, 101258), (394, 72988), (514, 55948), (568, 50629), (788, 36494), (1028, 27974), (1576, 18247), (2056, 13987)]