12991106388

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{206641}}^1$

素因数の和:206705

約数の個数: 72

約数和(自身を含む): 33882675456

約数和(自身を除く): 20891569068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 169, 186, 338, 372, 403, 507, 676, 806, 1014, 1209, 1612, 2028, 2418, 4836, 5239, 10478, 15717, 20956, 31434, 62868, 206641, 413282, 619923, 826564, 1239846, 2479692, 2686333, 5372666, 6405871, 8058999, 10745332, 12811742, 16117998, 19217613, 25623484, 32235996, 34922329, 38435226, 69844658, 76870452, 83276323, 104766987, 139689316, 166552646, 209533974, 249828969, 333105292, 419067948, 499657938, 999315876, 1082592199, 2165184398, 3247776597, 4330368796, 6495553194, 12991106388]

約数ペア:

[(1, 12991106388), (2, 6495553194), (3, 4330368796), (4, 3247776597), (6, 2165184398), (12, 1082592199), (13, 999315876), (26, 499657938), (31, 419067948), (39, 333105292), (52, 249828969), (62, 209533974), (78, 166552646), (93, 139689316), (124, 104766987), (156, 83276323), (169, 76870452), (186, 69844658), (338, 38435226), (372, 34922329), (403, 32235996), (507, 25623484), (676, 19217613), (806, 16117998), (1014, 12811742), (1209, 10745332), (1612, 8058999), (2028, 6405871), (2418, 5372666), (4836, 2686333), (5239, 2479692), (10478, 1239846), (15717, 826564), (20956, 619923), (31434, 413282), (62868, 206641)]