17818450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 36247680

約数和(自身を除く): 18429230

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 79, 130, 158, 325, 347, 395, 650, 694, 790, 1027, 1735, 1975, 2054, 3470, 3950, 4511, 5135, 8675, 9022, 10270, 17350, 22555, 25675, 27413, 45110, 51350, 54826, 112775, 137065, 225550, 274130, 356369, 685325, 712738, 1370650, 1781845, 3563690, 8909225, 17818450]

約数ペア:

[(1, 17818450), (2, 8909225), (5, 3563690), (10, 1781845), (13, 1370650), (25, 712738), (26, 685325), (50, 356369), (65, 274130), (79, 225550), (130, 137065), (158, 112775), (325, 54826), (347, 51350), (395, 45110), (650, 27413), (694, 25675), (790, 22555), (1027, 17350), (1735, 10270), (1975, 9022), (2054, 8675), (3470, 5135), (3950, 4511)]