20858902285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{138143}}^1$

素因数の和:138285

約数の個数: 32

約数和(自身を含む): 28406827008

約数和(自身を除く): 7547924723

約数列:

[1, 5, 13, 23, 65, 101, 115, 299, 505, 1313, 1495, 2323, 6565, 11615, 30199, 138143, 150995, 690715, 1795859, 3177289, 8979295, 13952443, 15886445, 41304757, 69762215, 181381759, 206523785, 320906189, 906908795, 1604530945, 4171780457, 20858902285]

約数ペア:

[(1, 20858902285), (5, 4171780457), (13, 1604530945), (23, 906908795), (65, 320906189), (101, 206523785), (115, 181381759), (299, 69762215), (505, 41304757), (1313, 15886445), (1495, 13952443), (2323, 8979295), (6565, 3177289), (11615, 1795859), (30199, 690715), (138143, 150995)]