397807748

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{463}}^1$

素因数の和:565

約数の個数: 72

約数和(自身を含む): 798852096

約数和(自身を除く): 401044348

約数列:

[1, 2, 4, 13, 26, 31, 41, 52, 62, 82, 124, 164, 169, 338, 403, 463, 533, 676, 806, 926, 1066, 1271, 1612, 1852, 2132, 2542, 5084, 5239, 6019, 6929, 10478, 12038, 13858, 14353, 16523, 18983, 20956, 24076, 27716, 28706, 33046, 37966, 57412, 66092, 75932, 78247, 156494, 186589, 214799, 246779, 312988, 373178, 429598, 493558, 588473, 746356, 859196, 987116, 1176946, 2353892, 2425657, 3208127, 4851314, 6416254, 7650149, 9702628, 12832508, 15300298, 30600596, 99451937, 198903874, 397807748]

約数ペア:

[(1, 397807748), (2, 198903874), (4, 99451937), (13, 30600596), (26, 15300298), (31, 12832508), (41, 9702628), (52, 7650149), (62, 6416254), (82, 4851314), (124, 3208127), (164, 2425657), (169, 2353892), (338, 1176946), (403, 987116), (463, 859196), (533, 746356), (676, 588473), (806, 493558), (926, 429598), (1066, 373178), (1271, 312988), (1612, 246779), (1852, 214799), (2132, 186589), (2542, 156494), (5084, 78247), (5239, 75932), (6019, 66092), (6929, 57412), (10478, 37966), (12038, 33046), (13858, 28706), (14353, 27716), (16523, 24076), (18983, 20956)]