78665444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 166017600

約数和(自身を除く): 87352156

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 71, 142, 143, 149, 169, 284, 286, 298, 338, 572, 596, 676, 781, 923, 1562, 1639, 1846, 1859, 1937, 3124, 3278, 3692, 3718, 3874, 6556, 7436, 7748, 10153, 10579, 11999, 20306, 21158, 21307, 23998, 25181, 40612, 42316, 42614, 47996, 50362, 85228, 100724, 116369, 131989, 137527, 232738, 263978, 275054, 276991, 465476, 527956, 550108, 553982, 1107964, 1512797, 1787851, 3025594, 3575702, 6051188, 7151404, 19666361, 39332722, 78665444]

約数ペア:

[(1, 78665444), (2, 39332722), (4, 19666361), (11, 7151404), (13, 6051188), (22, 3575702), (26, 3025594), (44, 1787851), (52, 1512797), (71, 1107964), (142, 553982), (143, 550108), (149, 527956), (169, 465476), (284, 276991), (286, 275054), (298, 263978), (338, 232738), (572, 137527), (596, 131989), (676, 116369), (781, 100724), (923, 85228), (1562, 50362), (1639, 47996), (1846, 42614), (1859, 42316), (1937, 40612), (3124, 25181), (3278, 23998), (3692, 21307), (3718, 21158), (3874, 20306), (6556, 11999), (7436, 10579), (7748, 10153)]