21582720

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1249}}^1$

素因数の和:1277

約数の個数: 128

約数和(自身を含む): 76500000

約数和(自身を除く): 54917280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1249, 1440, 1728, 1920, 2160, 2498, 2880, 3456, 3747, 4320, 4996, 5760, 6245, 7494, 8640, 9992, 11241, 12490, 14988, 17280, 18735, 19984, 22482, 24980, 29976, 33723, 37470, 39968, 44964, 49960, 56205, 59952, 67446, 74940, 79936, 89928, 99920, 112410, 119904, 134892, 149880, 159872, 168615, 179856, 199840, 224820, 239808, 269784, 299760, 337230, 359712, 399680, 449640, 479616, 539568, 599520, 674460, 719424, 799360, 899280, 1079136, 1199040, 1348920, 1438848, 1798560, 2158272, 2398080, 2697840, 3597120, 4316544, 5395680, 7194240, 10791360, 21582720]

約数ペア:

[(1, 21582720), (2, 10791360), (3, 7194240), (4, 5395680), (5, 4316544), (6, 3597120), (8, 2697840), (9, 2398080), (10, 2158272), (12, 1798560), (15, 1438848), (16, 1348920), (18, 1199040), (20, 1079136), (24, 899280), (27, 799360), (30, 719424), (32, 674460), (36, 599520), (40, 539568), (45, 479616), (48, 449640), (54, 399680), (60, 359712), (64, 337230), (72, 299760), (80, 269784), (90, 239808), (96, 224820), (108, 199840), (120, 179856), (128, 168615), (135, 159872), (144, 149880), (160, 134892), (180, 119904), (192, 112410), (216, 99920), (240, 89928), (270, 79936), (288, 74940), (320, 67446), (360, 59952), (384, 56205), (432, 49960), (480, 44964), (540, 39968), (576, 37470), (640, 33723), (720, 29976), (864, 24980), (960, 22482), (1080, 19984), (1152, 18735), (1249, 17280), (1440, 14988), (1728, 12490), (1920, 11241), (2160, 9992), (2498, 8640), (2880, 7494), (3456, 6245), (3747, 5760), (4320, 4996)]