31272955

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:140

約数の個数: 64

約数和(自身を含む): 49029120

約数和(自身を除く): 17756165

約数列:

[1, 5, 7, 19, 31, 35, 37, 41, 95, 133, 155, 185, 205, 217, 259, 287, 589, 665, 703, 779, 1085, 1147, 1271, 1295, 1435, 1517, 2945, 3515, 3895, 4123, 4921, 5453, 5735, 6355, 7585, 8029, 8897, 10619, 20615, 21793, 24149, 24605, 27265, 28823, 40145, 44485, 47027, 53095, 108965, 120745, 144115, 152551, 169043, 201761, 235135, 329189, 762755, 845215, 893513, 1008805, 1645945, 4467565, 6254591, 31272955]

約数ペア:

[(1, 31272955), (5, 6254591), (7, 4467565), (19, 1645945), (31, 1008805), (35, 893513), (37, 845215), (41, 762755), (95, 329189), (133, 235135), (155, 201761), (185, 169043), (205, 152551), (217, 144115), (259, 120745), (287, 108965), (589, 53095), (665, 47027), (703, 44485), (779, 40145), (1085, 28823), (1147, 27265), (1271, 24605), (1295, 24149), (1435, 21793), (1517, 20615), (2945, 10619), (3515, 8897), (3895, 8029), (4123, 7585), (4921, 6355), (5453, 5735)]