90810005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:318

約数の個数: 64

約数和(自身を含む): 140507136

約数和(自身を除く): 49697131

約数列:

[1, 5, 11, 13, 17, 31, 55, 65, 85, 143, 155, 187, 221, 241, 341, 403, 527, 715, 935, 1105, 1205, 1705, 2015, 2431, 2635, 2651, 3133, 4097, 4433, 5797, 6851, 7471, 12155, 13255, 15665, 20485, 22165, 28985, 34255, 34463, 37355, 45067, 53261, 75361, 82181, 97123, 127007, 172315, 225335, 266305, 376805, 410905, 485615, 585871, 635035, 1068353, 1397077, 1651091, 2929355, 5341765, 6985385, 8255455, 18162001, 90810005]

約数ペア:

[(1, 90810005), (5, 18162001), (11, 8255455), (13, 6985385), (17, 5341765), (31, 2929355), (55, 1651091), (65, 1397077), (85, 1068353), (143, 635035), (155, 585871), (187, 485615), (221, 410905), (241, 376805), (341, 266305), (403, 225335), (527, 172315), (715, 127007), (935, 97123), (1105, 82181), (1205, 75361), (1705, 53261), (2015, 45067), (2431, 37355), (2635, 34463), (2651, 34255), (3133, 28985), (4097, 22165), (4433, 20485), (5797, 15665), (6851, 13255), (7471, 12155)]