1989845

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 32

約数和(自身を含む): 2951424

約数和(自身を除く): 961579

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 121, 143, 253, 299, 605, 715, 1265, 1331, 1495, 1573, 2783, 3289, 6655, 7865, 13915, 16445, 17303, 30613, 36179, 86515, 153065, 180895, 397969, 1989845]

約数ペア:

[(1, 1989845), (5, 397969), (11, 180895), (13, 153065), (23, 86515), (55, 36179), (65, 30613), (115, 17303), (121, 16445), (143, 13915), (253, 7865), (299, 6655), (605, 3289), (715, 2783), (1265, 1573), (1331, 1495)]