198746405

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:326

約数の個数: 64

約数和(自身を含む): 301771008

約数和(自身を除く): 103024603

約数列:

[1, 5, 11, 13, 17, 55, 65, 83, 85, 143, 187, 197, 221, 415, 715, 913, 935, 985, 1079, 1105, 1411, 2167, 2431, 2561, 3349, 4565, 5395, 7055, 10835, 11869, 12155, 12805, 15521, 16351, 16745, 18343, 28171, 36839, 43537, 59345, 77605, 81755, 91715, 140855, 179861, 184195, 201773, 212563, 217685, 277967, 478907, 899305, 1008865, 1062815, 1389835, 2338193, 2394535, 3057637, 3613571, 11690965, 15288185, 18067855, 39749281, 198746405]

約数ペア:

[(1, 198746405), (5, 39749281), (11, 18067855), (13, 15288185), (17, 11690965), (55, 3613571), (65, 3057637), (83, 2394535), (85, 2338193), (143, 1389835), (187, 1062815), (197, 1008865), (221, 899305), (415, 478907), (715, 277967), (913, 217685), (935, 212563), (985, 201773), (1079, 184195), (1105, 179861), (1411, 140855), (2167, 91715), (2431, 81755), (2561, 77605), (3349, 59345), (4565, 43537), (5395, 36839), (7055, 28171), (10835, 18343), (11869, 16745), (12155, 16351), (12805, 15521)]