261193635

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{3457}}^1$

素因数の和:3564

約数の個数: 48

約数和(自身を含む): 479029824

約数和(自身を除く): 217836189

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 73, 115, 207, 219, 345, 365, 657, 1035, 1095, 1679, 3285, 3457, 5037, 8395, 10371, 15111, 17285, 25185, 31113, 51855, 75555, 79511, 155565, 238533, 252361, 397555, 715599, 757083, 1192665, 1261805, 2271249, 3577995, 3785415, 5804303, 11356245, 17412909, 29021515, 52238727, 87064545, 261193635]

約数ペア:

[(1, 261193635), (3, 87064545), (5, 52238727), (9, 29021515), (15, 17412909), (23, 11356245), (45, 5804303), (69, 3785415), (73, 3577995), (115, 2271249), (207, 1261805), (219, 1192665), (345, 757083), (365, 715599), (657, 397555), (1035, 252361), (1095, 238533), (1679, 155565), (3285, 79511), (3457, 75555), (5037, 51855), (8395, 31113), (10371, 25185), (15111, 17285)]