287961120

素因数分解:

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

素因数の和:975

約数の個数: 144

約数和(自身を含む): 987360192

約数和(自身を除く): 699399072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 311, 360, 480, 622, 643, 720, 933, 1244, 1286, 1440, 1555, 1866, 1929, 2488, 2572, 2799, 3110, 3215, 3732, 3858, 4665, 4976, 5144, 5598, 5787, 6220, 6430, 7464, 7716, 9330, 9645, 9952, 10288, 11196, 11574, 12440, 12860, 13995, 14928, 15432, 18660, 19290, 20576, 22392, 23148, 24880, 25720, 27990, 28935, 29856, 30864, 37320, 38580, 44784, 46296, 49760, 51440, 55980, 57870, 61728, 74640, 77160, 89568, 92592, 102880, 111960, 115740, 149280, 154320, 185184, 199973, 223920, 231480, 308640, 399946, 447840, 462960, 599919, 799892, 925920, 999865, 1199838, 1599784, 1799757, 1999730, 2399676, 2999595, 3199568, 3599514, 3999460, 4799352, 5999190, 6399136, 7199028, 7998920, 8998785, 9598704, 11998380, 14398056, 15997840, 17997570, 19197408, 23996760, 28796112, 31995680, 35995140, 47993520, 57592224, 71990280, 95987040, 143980560, 287961120]

約数ペア:

[(1, 287961120), (2, 143980560), (3, 95987040), (4, 71990280), (5, 57592224), (6, 47993520), (8, 35995140), (9, 31995680), (10, 28796112), (12, 23996760), (15, 19197408), (16, 17997570), (18, 15997840), (20, 14398056), (24, 11998380), (30, 9598704), (32, 8998785), (36, 7998920), (40, 7199028), (45, 6399136), (48, 5999190), (60, 4799352), (72, 3999460), (80, 3599514), (90, 3199568), (96, 2999595), (120, 2399676), (144, 1999730), (160, 1799757), (180, 1599784), (240, 1199838), (288, 999865), (311, 925920), (360, 799892), (480, 599919), (622, 462960), (643, 447840), (720, 399946), (933, 308640), (1244, 231480), (1286, 223920), (1440, 199973), (1555, 185184), (1866, 154320), (1929, 149280), (2488, 115740), (2572, 111960), (2799, 102880), (3110, 92592), (3215, 89568), (3732, 77160), (3858, 74640), (4665, 61728), (4976, 57870), (5144, 55980), (5598, 51440), (5787, 49760), (6220, 46296), (6430, 44784), (7464, 38580), (7716, 37320), (9330, 30864), (9645, 29856), (9952, 28935), (10288, 27990), (11196, 25720), (11574, 24880), (12440, 23148), (12860, 22392), (13995, 20576), (14928, 19290), (15432, 18660)]