11440640

素因数分解:

$2^9\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 80

約数和(自身を含む): 28357560

約数和(自身を除く): 16916920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 109, 128, 160, 164, 205, 218, 256, 320, 328, 410, 436, 512, 545, 640, 656, 820, 872, 1090, 1280, 1312, 1640, 1744, 2180, 2560, 2624, 3280, 3488, 4360, 4469, 5248, 6560, 6976, 8720, 8938, 10496, 13120, 13952, 17440, 17876, 20992, 22345, 26240, 27904, 34880, 35752, 44690, 52480, 55808, 69760, 71504, 89380, 104960, 139520, 143008, 178760, 279040, 286016, 357520, 572032, 715040, 1144064, 1430080, 2288128, 2860160, 5720320, 11440640]

約数ペア:

[(1, 11440640), (2, 5720320), (4, 2860160), (5, 2288128), (8, 1430080), (10, 1144064), (16, 715040), (20, 572032), (32, 357520), (40, 286016), (41, 279040), (64, 178760), (80, 143008), (82, 139520), (109, 104960), (128, 89380), (160, 71504), (164, 69760), (205, 55808), (218, 52480), (256, 44690), (320, 35752), (328, 34880), (410, 27904), (436, 26240), (512, 22345), (545, 20992), (640, 17876), (656, 17440), (820, 13952), (872, 13120), (1090, 10496), (1280, 8938), (1312, 8720), (1640, 6976), (1744, 6560), (2180, 5248), (2560, 4469), (2624, 4360), (3280, 3488)]