20695285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 7689995

約数列:

[1, 5, 13, 23, 65, 109, 115, 127, 299, 545, 635, 1417, 1495, 1651, 2507, 2921, 7085, 8255, 12535, 13843, 14605, 32591, 37973, 69215, 162955, 179959, 189865, 318389, 899795, 1591945, 4139057, 20695285]

約数ペア:

[(1, 20695285), (5, 4139057), (13, 1591945), (23, 899795), (65, 318389), (109, 189865), (115, 179959), (127, 162955), (299, 69215), (545, 37973), (635, 32591), (1417, 14605), (1495, 13843), (1651, 12535), (2507, 8255), (2921, 7085)]