20804060108

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{397297}}^1$

素因数の和:397386

約数の個数: 48

約数和(自身を含む): 42050020320

約数和(自身を除く): 21245960212

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 53, 76, 106, 212, 247, 494, 689, 988, 1007, 1378, 2014, 2756, 4028, 13091, 26182, 52364, 397297, 794594, 1589188, 5164861, 7548643, 10329722, 15097286, 20659444, 21056741, 30194572, 42113482, 84226964, 98132359, 196264718, 273737633, 392529436, 400078079, 547475266, 800156158, 1094950532, 1600312316, 5201015027, 10402030054, 20804060108]

約数ペア:

[(1, 20804060108), (2, 10402030054), (4, 5201015027), (13, 1600312316), (19, 1094950532), (26, 800156158), (38, 547475266), (52, 400078079), (53, 392529436), (76, 273737633), (106, 196264718), (212, 98132359), (247, 84226964), (494, 42113482), (689, 30194572), (988, 21056741), (1007, 20659444), (1378, 15097286), (2014, 10329722), (2756, 7548643), (4028, 5164861), (13091, 1589188), (26182, 794594), (52364, 397297)]