12961780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49853}}^1$

素因数の和:49875

約数の個数: 24

約数和(自身を含む): 29314152

約数和(自身を除く): 16352372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49853, 99706, 199412, 249265, 498530, 648089, 997060, 1296178, 2592356, 3240445, 6480890, 12961780]

約数ペア:

[(1, 12961780), (2, 6480890), (4, 3240445), (5, 2592356), (10, 1296178), (13, 997060), (20, 648089), (26, 498530), (52, 249265), (65, 199412), (130, 99706), (260, 49853)]