390378960

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{180731}}^1$

素因数の和:180753

約数の個数: 80

約数和(自身を含む): 1344646080

約数和(自身を除く): 954267120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 180731, 361462, 542193, 722924, 903655, 1084386, 1445848, 1626579, 1807310, 2168772, 2710965, 2891696, 3253158, 3614620, 4337544, 4879737, 5421930, 6506316, 7229240, 8132895, 8675088, 9759474, 10843860, 13012632, 14458480, 16265790, 19518948, 21687720, 24398685, 26025264, 32531580, 39037896, 43375440, 48797370, 65063160, 78075792, 97594740, 130126320, 195189480, 390378960]

約数ペア:

[(1, 390378960), (2, 195189480), (3, 130126320), (4, 97594740), (5, 78075792), (6, 65063160), (8, 48797370), (9, 43375440), (10, 39037896), (12, 32531580), (15, 26025264), (16, 24398685), (18, 21687720), (20, 19518948), (24, 16265790), (27, 14458480), (30, 13012632), (36, 10843860), (40, 9759474), (45, 8675088), (48, 8132895), (54, 7229240), (60, 6506316), (72, 5421930), (80, 4879737), (90, 4337544), (108, 3614620), (120, 3253158), (135, 2891696), (144, 2710965), (180, 2168772), (216, 1807310), (240, 1626579), (270, 1445848), (360, 1084386), (432, 903655), (540, 722924), (720, 542193), (1080, 361462), (2160, 180731)]