640440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{593}}^1$

素因数の和:613

約数の個数: 64

約数和(自身を含む): 2138400

約数和(自身を除く): 1497960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 593, 1080, 1186, 1779, 2372, 2965, 3558, 4744, 5337, 5930, 7116, 8895, 10674, 11860, 14232, 16011, 17790, 21348, 23720, 26685, 32022, 35580, 42696, 53370, 64044, 71160, 80055, 106740, 128088, 160110, 213480, 320220, 640440]

約数ペア:

[(1, 640440), (2, 320220), (3, 213480), (4, 160110), (5, 128088), (6, 106740), (8, 80055), (9, 71160), (10, 64044), (12, 53370), (15, 42696), (18, 35580), (20, 32022), (24, 26685), (27, 23720), (30, 21348), (36, 17790), (40, 16011), (45, 14232), (54, 11860), (60, 10674), (72, 8895), (90, 7116), (108, 5930), (120, 5337), (135, 4744), (180, 3558), (216, 2965), (270, 2372), (360, 1779), (540, 1186), (593, 1080)]