31358236

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:459

約数の個数: 72

約数和(自身を含む): 71143296

約数和(自身を除く): 39785060

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 49, 52, 62, 91, 98, 124, 182, 196, 217, 364, 397, 403, 434, 637, 794, 806, 868, 1274, 1519, 1588, 1612, 2548, 2779, 2821, 3038, 5161, 5558, 5642, 6076, 10322, 11116, 11284, 12307, 19453, 19747, 20644, 24614, 36127, 38906, 39494, 49228, 72254, 77812, 78988, 86149, 144508, 159991, 172298, 252889, 319982, 344596, 505778, 603043, 639964, 1011556, 1119937, 1206086, 2239874, 2412172, 4479748, 7839559, 15679118, 31358236]

約数ペア:

[(1, 31358236), (2, 15679118), (4, 7839559), (7, 4479748), (13, 2412172), (14, 2239874), (26, 1206086), (28, 1119937), (31, 1011556), (49, 639964), (52, 603043), (62, 505778), (91, 344596), (98, 319982), (124, 252889), (182, 172298), (196, 159991), (217, 144508), (364, 86149), (397, 78988), (403, 77812), (434, 72254), (637, 49228), (794, 39494), (806, 38906), (868, 36127), (1274, 24614), (1519, 20644), (1588, 19747), (1612, 19453), (2548, 12307), (2779, 11284), (2821, 11116), (3038, 10322), (5161, 6076), (5558, 5642)]