20715388265

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1259677}}^1$

素因数の和:1259729

約数の個数: 32

約数和(自身を含む): 30474130176

約数和(自身を除く): 9758741911

約数列:

[1, 5, 11, 13, 23, 55, 65, 115, 143, 253, 299, 715, 1265, 1495, 3289, 16445, 1259677, 6298385, 13856447, 16375801, 28972571, 69282235, 81879005, 144862855, 180133811, 318698281, 376643423, 900669055, 1593491405, 1883217115, 4143077653, 20715388265]

約数ペア:

[(1, 20715388265), (5, 4143077653), (11, 1883217115), (13, 1593491405), (23, 900669055), (55, 376643423), (65, 318698281), (115, 180133811), (143, 144862855), (253, 81879005), (299, 69282235), (715, 28972571), (1265, 16375801), (1495, 13856447), (3289, 6298385), (16445, 1259677)]