28089105

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:206

約数の個数: 64

約数和(自身を含む): 52005888

約数和(自身を除く): 23916783

約数列:

[1, 3, 5, 11, 15, 33, 37, 43, 55, 107, 111, 129, 165, 185, 215, 321, 407, 473, 535, 555, 645, 1177, 1221, 1419, 1591, 1605, 2035, 2365, 3531, 3959, 4601, 4773, 5885, 6105, 7095, 7955, 11877, 13803, 17501, 17655, 19795, 23005, 23865, 43549, 50611, 52503, 59385, 69015, 87505, 130647, 151833, 170237, 217745, 253055, 262515, 510711, 653235, 759165, 851185, 1872607, 2553555, 5617821, 9363035, 28089105]

約数ペア:

[(1, 28089105), (3, 9363035), (5, 5617821), (11, 2553555), (15, 1872607), (33, 851185), (37, 759165), (43, 653235), (55, 510711), (107, 262515), (111, 253055), (129, 217745), (165, 170237), (185, 151833), (215, 130647), (321, 87505), (407, 69015), (473, 59385), (535, 52503), (555, 50611), (645, 43549), (1177, 23865), (1221, 23005), (1419, 19795), (1591, 17655), (1605, 17501), (2035, 13803), (2365, 11877), (3531, 7955), (3959, 7095), (4601, 6105), (4773, 5885)]