20145488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{3947}}^1$

素因数の和:3995

約数の個数: 40

約数和(自身を含む): 44059680

約数和(自身を除く): 23914192

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 3947, 5104, 7894, 15788, 31576, 43417, 63152, 86834, 114463, 173668, 228926, 347336, 457852, 694672, 915704, 1259093, 1831408, 2518186, 5036372, 10072744, 20145488]

約数ペア:

[(1, 20145488), (2, 10072744), (4, 5036372), (8, 2518186), (11, 1831408), (16, 1259093), (22, 915704), (29, 694672), (44, 457852), (58, 347336), (88, 228926), (116, 173668), (176, 114463), (232, 86834), (319, 63152), (464, 43417), (638, 31576), (1276, 15788), (2552, 7894), (3947, 5104)]