40388908

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:171

約数の個数: 72

約数和(自身を含む): 88972800

約数和(自身を除く): 48583892

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 79, 124, 133, 158, 217, 266, 316, 434, 532, 553, 589, 868, 961, 1106, 1178, 1501, 1922, 2212, 2356, 2449, 3002, 3844, 4123, 4898, 6004, 6727, 8246, 9796, 10507, 13454, 16492, 17143, 18259, 21014, 26908, 34286, 36518, 42028, 46531, 68572, 73036, 75919, 93062, 127813, 151838, 186124, 255626, 303676, 325717, 511252, 531433, 651434, 1062866, 1302868, 1442461, 2125732, 2884922, 5769844, 10097227, 20194454, 40388908]

約数ペア:

[(1, 40388908), (2, 20194454), (4, 10097227), (7, 5769844), (14, 2884922), (19, 2125732), (28, 1442461), (31, 1302868), (38, 1062866), (62, 651434), (76, 531433), (79, 511252), (124, 325717), (133, 303676), (158, 255626), (217, 186124), (266, 151838), (316, 127813), (434, 93062), (532, 75919), (553, 73036), (589, 68572), (868, 46531), (961, 42028), (1106, 36518), (1178, 34286), (1501, 26908), (1922, 21014), (2212, 18259), (2356, 17143), (2449, 16492), (3002, 13454), (3844, 10507), (4123, 9796), (4898, 8246), (6004, 6727)]