21295440

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9859}}^1$

素因数の和:9881

約数の個数: 80

約数和(自身を含む): 73358400

約数和(自身を除く): 52062960

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, 9859, 19718, 29577, 39436, 49295, 59154, 78872, 88731, 98590, 118308, 147885, 157744, 177462, 197180, 236616, 266193, 295770, 354924, 394360, 443655, 473232, 532386, 591540, 709848, 788720, 887310, 1064772, 1183080, 1330965, 1419696, 1774620, 2129544, 2366160, 2661930, 3549240, 4259088, 5323860, 7098480, 10647720, 21295440]

約数ペア:

[(1, 21295440), (2, 10647720), (3, 7098480), (4, 5323860), (5, 4259088), (6, 3549240), (8, 2661930), (9, 2366160), (10, 2129544), (12, 1774620), (15, 1419696), (16, 1330965), (18, 1183080), (20, 1064772), (24, 887310), (27, 788720), (30, 709848), (36, 591540), (40, 532386), (45, 473232), (48, 443655), (54, 394360), (60, 354924), (72, 295770), (80, 266193), (90, 236616), (108, 197180), (120, 177462), (135, 157744), (144, 147885), (180, 118308), (216, 98590), (240, 88731), (270, 78872), (360, 59154), (432, 49295), (540, 39436), (720, 29577), (1080, 19718), (2160, 9859)]