210345980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{809023}}^1$

素因数の和:809045

約数の個数: 24

約数和(自身を含む): 475706112

約数和(自身を除く): 265360132

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 809023, 1618046, 3236092, 4045115, 8090230, 10517299, 16180460, 21034598, 42069196, 52586495, 105172990, 210345980]

約数ペア:

[(1, 210345980), (2, 105172990), (4, 52586495), (5, 42069196), (10, 21034598), (13, 16180460), (20, 10517299), (26, 8090230), (52, 4045115), (65, 3236092), (130, 1618046), (260, 809023)]