28521844

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 27361676

約数列:

[1, 2, 4, 13, 26, 52, 53, 79, 106, 131, 158, 212, 262, 316, 524, 689, 1027, 1378, 1703, 2054, 2756, 3406, 4108, 4187, 6812, 6943, 8374, 10349, 13886, 16748, 20698, 27772, 41396, 54431, 90259, 108862, 134537, 180518, 217724, 269074, 361036, 538148, 548497, 1096994, 2193988, 7130461, 14260922, 28521844]

約数ペア:

[(1, 28521844), (2, 14260922), (4, 7130461), (13, 2193988), (26, 1096994), (52, 548497), (53, 538148), (79, 361036), (106, 269074), (131, 217724), (158, 180518), (212, 134537), (262, 108862), (316, 90259), (524, 54431), (689, 41396), (1027, 27772), (1378, 20698), (1703, 16748), (2054, 13886), (2756, 10349), (3406, 8374), (4108, 6943), (4187, 6812)]