65748460

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20939}}^1$

素因数の和:21105

約数の個数: 24

約数和(自身を含む): 138957840

約数和(自身を除く): 73209380

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 20939, 41878, 83756, 104695, 209390, 418780, 3287423, 6574846, 13149692, 16437115, 32874230, 65748460]

約数ペア:

[(1, 65748460), (2, 32874230), (4, 16437115), (5, 13149692), (10, 6574846), (20, 3287423), (157, 418780), (314, 209390), (628, 104695), (785, 83756), (1570, 41878), (3140, 20939)]