139640215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{541}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 208154016

約数和(自身を除く): 68513801

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 361, 541, 715, 1045, 1235, 1805, 2705, 2717, 3971, 4693, 5951, 7033, 10279, 13585, 19855, 23465, 29755, 35165, 51395, 51623, 77363, 113069, 133627, 195301, 258115, 386815, 565345, 668135, 976505, 1469897, 2148311, 2538913, 7349485, 10741555, 12694565, 27928043, 139640215]

約数ペア:

[(1, 139640215), (5, 27928043), (11, 12694565), (13, 10741555), (19, 7349485), (55, 2538913), (65, 2148311), (95, 1469897), (143, 976505), (209, 668135), (247, 565345), (361, 386815), (541, 258115), (715, 195301), (1045, 133627), (1235, 113069), (1805, 77363), (2705, 51623), (2717, 51395), (3971, 35165), (4693, 29755), (5951, 23465), (7033, 19855), (10279, 13585)]