145710020

素因数分解:

$2^2\times 5^1\times {\mathrm{7285501}}^1$

素因数の和:7285510

約数の個数: 12

約数和(自身を含む): 305991084

約数和(自身を除く): 160281064

約数列:

[1, 2, 4, 5, 10, 20, 7285501, 14571002, 29142004, 36427505, 72855010, 145710020]

約数ペア:

[(1, 145710020), (2, 72855010), (4, 36427505), (5, 29142004), (10, 14571002), (20, 7285501)]