65974540

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{21011}}^1$

素因数の和:21177

約数の個数: 24

約数和(自身を含む): 139435632

約数和(自身を除く): 73461092

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 21011, 42022, 84044, 105055, 210110, 420220, 3298727, 6597454, 13194908, 16493635, 32987270, 65974540]

約数ペア:

[(1, 65974540), (2, 32987270), (4, 16493635), (5, 13194908), (10, 6597454), (20, 3298727), (157, 420220), (314, 210110), (628, 105055), (785, 84044), (1570, 42022), (3140, 21011)]