81245488

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{137239}}^1$

素因数の和:137284

約数の個数: 20

約数和(自身を含む): 161668720

約数和(自身を除く): 80423232

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 137239, 274478, 548956, 1097912, 2195824, 5077843, 10155686, 20311372, 40622744, 81245488]

約数ペア:

[(1, 81245488), (2, 40622744), (4, 20311372), (8, 10155686), (16, 5077843), (37, 2195824), (74, 1097912), (148, 548956), (296, 274478), (592, 137239)]