1325440

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:147

約数の個数: 64

約数和(自身を含む): 3366000

約数和(自身を除く): 2040560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 109, 128, 152, 160, 190, 218, 304, 320, 380, 436, 545, 608, 640, 760, 872, 1090, 1216, 1520, 1744, 2071, 2180, 2432, 3040, 3488, 4142, 4360, 6080, 6976, 8284, 8720, 10355, 12160, 13952, 16568, 17440, 20710, 33136, 34880, 41420, 66272, 69760, 82840, 132544, 165680, 265088, 331360, 662720, 1325440]

約数ペア:

[(1, 1325440), (2, 662720), (4, 331360), (5, 265088), (8, 165680), (10, 132544), (16, 82840), (19, 69760), (20, 66272), (32, 41420), (38, 34880), (40, 33136), (64, 20710), (76, 17440), (80, 16568), (95, 13952), (109, 12160), (128, 10355), (152, 8720), (160, 8284), (190, 6976), (218, 6080), (304, 4360), (320, 4142), (380, 3488), (436, 3040), (545, 2432), (608, 2180), (640, 2071), (760, 1744), (872, 1520), (1090, 1216)]