71990280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:971

約数の個数: 96

約数和(自身を含む): 235085760

約数和(自身を除く): 163095480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 311, 360, 622, 643, 933, 1244, 1286, 1555, 1866, 1929, 2488, 2572, 2799, 3110, 3215, 3732, 3858, 4665, 5144, 5598, 5787, 6220, 6430, 7464, 7716, 9330, 9645, 11196, 11574, 12440, 12860, 13995, 15432, 18660, 19290, 22392, 23148, 25720, 27990, 28935, 37320, 38580, 46296, 55980, 57870, 77160, 111960, 115740, 199973, 231480, 399946, 599919, 799892, 999865, 1199838, 1599784, 1799757, 1999730, 2399676, 2999595, 3599514, 3999460, 4799352, 5999190, 7199028, 7998920, 8998785, 11998380, 14398056, 17997570, 23996760, 35995140, 71990280]

約数ペア:

[(1, 71990280), (2, 35995140), (3, 23996760), (4, 17997570), (5, 14398056), (6, 11998380), (8, 8998785), (9, 7998920), (10, 7199028), (12, 5999190), (15, 4799352), (18, 3999460), (20, 3599514), (24, 2999595), (30, 2399676), (36, 1999730), (40, 1799757), (45, 1599784), (60, 1199838), (72, 999865), (90, 799892), (120, 599919), (180, 399946), (311, 231480), (360, 199973), (622, 115740), (643, 111960), (933, 77160), (1244, 57870), (1286, 55980), (1555, 46296), (1866, 38580), (1929, 37320), (2488, 28935), (2572, 27990), (2799, 25720), (3110, 23148), (3215, 22392), (3732, 19290), (3858, 18660), (4665, 15432), (5144, 13995), (5598, 12860), (5787, 12440), (6220, 11574), (6430, 11196), (7464, 9645), (7716, 9330)]