165680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:141

約数の個数: 40

約数和(自身を含む): 409200

約数和(自身を除く): 243520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 109, 152, 190, 218, 304, 380, 436, 545, 760, 872, 1090, 1520, 1744, 2071, 2180, 4142, 4360, 8284, 8720, 10355, 16568, 20710, 33136, 41420, 82840, 165680]

約数ペア:

[(1, 165680), (2, 82840), (4, 41420), (5, 33136), (8, 20710), (10, 16568), (16, 10355), (19, 8720), (20, 8284), (38, 4360), (40, 4142), (76, 2180), (80, 2071), (95, 1744), (109, 1520), (152, 1090), (190, 872), (218, 760), (304, 545), (380, 436)]