51102205

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 82944000

約数和(自身を除く): 31841795

約数列:

[1, 5, 7, 11, 23, 29, 35, 55, 77, 115, 145, 161, 199, 203, 253, 319, 385, 667, 805, 995, 1015, 1265, 1393, 1595, 1771, 2189, 2233, 3335, 4577, 4669, 5771, 6965, 7337, 8855, 10945, 11165, 15323, 22885, 23345, 28855, 32039, 36685, 40397, 50347, 51359, 63481, 76615, 132733, 160195, 201985, 251735, 256795, 317405, 352429, 444367, 663665, 929131, 1460063, 1762145, 2221835, 4645655, 7300315, 10220441, 51102205]

約数ペア:

[(1, 51102205), (5, 10220441), (7, 7300315), (11, 4645655), (23, 2221835), (29, 1762145), (35, 1460063), (55, 929131), (77, 663665), (115, 444367), (145, 352429), (161, 317405), (199, 256795), (203, 251735), (253, 201985), (319, 160195), (385, 132733), (667, 76615), (805, 63481), (995, 51359), (1015, 50347), (1265, 40397), (1393, 36685), (1595, 32039), (1771, 28855), (2189, 23345), (2233, 22885), (3335, 15323), (4577, 11165), (4669, 10945), (5771, 8855), (6965, 7337)]