27989565

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 23332035

約数列:

[1, 3, 5, 15, 17, 19, 51, 53, 57, 85, 95, 109, 159, 255, 265, 285, 323, 327, 545, 795, 901, 969, 1007, 1615, 1635, 1853, 2071, 2703, 3021, 4505, 4845, 5035, 5559, 5777, 6213, 9265, 10355, 13515, 15105, 17119, 17331, 27795, 28885, 31065, 35207, 51357, 85595, 86655, 98209, 105621, 109763, 176035, 256785, 294627, 329289, 491045, 528105, 548815, 1473135, 1646445, 1865971, 5597913, 9329855, 27989565]

約数ペア:

[(1, 27989565), (3, 9329855), (5, 5597913), (15, 1865971), (17, 1646445), (19, 1473135), (51, 548815), (53, 528105), (57, 491045), (85, 329289), (95, 294627), (109, 256785), (159, 176035), (255, 109763), (265, 105621), (285, 98209), (323, 86655), (327, 85595), (545, 51357), (795, 35207), (901, 31065), (969, 28885), (1007, 27795), (1615, 17331), (1635, 17119), (1853, 15105), (2071, 13515), (2703, 10355), (3021, 9265), (4505, 6213), (4845, 5777), (5035, 5559)]