21572760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 72057600

約数和(自身を除く): 50484840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 59, 60, 66, 88, 110, 118, 120, 132, 165, 177, 220, 236, 264, 277, 295, 330, 354, 440, 472, 554, 590, 649, 660, 708, 831, 885, 1108, 1180, 1298, 1320, 1385, 1416, 1662, 1770, 1947, 2216, 2360, 2596, 2770, 3047, 3245, 3324, 3540, 3894, 4155, 5192, 5540, 6094, 6490, 6648, 7080, 7788, 8310, 9141, 9735, 11080, 12188, 12980, 15235, 15576, 16343, 16620, 18282, 19470, 24376, 25960, 30470, 32686, 33240, 36564, 38940, 45705, 49029, 60940, 65372, 73128, 77880, 81715, 91410, 98058, 121880, 130744, 163430, 179773, 182820, 196116, 245145, 326860, 359546, 365640, 392232, 490290, 539319, 653720, 719092, 898865, 980580, 1078638, 1438184, 1797730, 1961160, 2157276, 2696595, 3595460, 4314552, 5393190, 7190920, 10786380, 21572760]

約数ペア:

[(1, 21572760), (2, 10786380), (3, 7190920), (4, 5393190), (5, 4314552), (6, 3595460), (8, 2696595), (10, 2157276), (11, 1961160), (12, 1797730), (15, 1438184), (20, 1078638), (22, 980580), (24, 898865), (30, 719092), (33, 653720), (40, 539319), (44, 490290), (55, 392232), (59, 365640), (60, 359546), (66, 326860), (88, 245145), (110, 196116), (118, 182820), (120, 179773), (132, 163430), (165, 130744), (177, 121880), (220, 98058), (236, 91410), (264, 81715), (277, 77880), (295, 73128), (330, 65372), (354, 60940), (440, 49029), (472, 45705), (554, 38940), (590, 36564), (649, 33240), (660, 32686), (708, 30470), (831, 25960), (885, 24376), (1108, 19470), (1180, 18282), (1298, 16620), (1320, 16343), (1385, 15576), (1416, 15235), (1662, 12980), (1770, 12188), (1947, 11080), (2216, 9735), (2360, 9141), (2596, 8310), (2770, 7788), (3047, 7080), (3245, 6648), (3324, 6490), (3540, 6094), (3894, 5540), (4155, 5192)]