138644240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{247579}}^1$

素因数の和:247599

約数の個数: 40

約数和(自身を含む): 368399040

約数和(自身を除く): 229754800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 247579, 495158, 990316, 1237895, 1733053, 1980632, 2475790, 3466106, 3961264, 4951580, 6932212, 8665265, 9903160, 13864424, 17330530, 19806320, 27728848, 34661060, 69322120, 138644240]

約数ペア:

[(1, 138644240), (2, 69322120), (4, 34661060), (5, 27728848), (7, 19806320), (8, 17330530), (10, 13864424), (14, 9903160), (16, 8665265), (20, 6932212), (28, 4951580), (35, 3961264), (40, 3466106), (56, 2475790), (70, 1980632), (80, 1733053), (112, 1237895), (140, 990316), (280, 495158), (560, 247579)]