7212205

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 11797632

約数和(自身を除く): 4585427

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 121, 131, 143, 385, 455, 605, 655, 715, 847, 917, 1001, 1441, 1573, 1703, 4235, 4585, 5005, 7205, 7865, 8515, 10087, 11011, 11921, 15851, 18733, 50435, 55055, 59605, 79255, 93665, 110957, 131131, 206063, 554785, 655655, 1030315, 1442441, 7212205]

約数ペア:

[(1, 7212205), (5, 1442441), (7, 1030315), (11, 655655), (13, 554785), (35, 206063), (55, 131131), (65, 110957), (77, 93665), (91, 79255), (121, 59605), (131, 55055), (143, 50435), (385, 18733), (455, 15851), (605, 11921), (655, 11011), (715, 10087), (847, 8515), (917, 7865), (1001, 7205), (1441, 5005), (1573, 4585), (1703, 4235)]