7389980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:726

約数の個数: 48

約数和(自身を含む): 17127264

約数和(自身を除く): 9737284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 661, 860, 1118, 1322, 2236, 2644, 2795, 3305, 5590, 6610, 8593, 11180, 13220, 17186, 28423, 34372, 42965, 56846, 85930, 113692, 142115, 171860, 284230, 369499, 568460, 738998, 1477996, 1847495, 3694990, 7389980]

約数ペア:

[(1, 7389980), (2, 3694990), (4, 1847495), (5, 1477996), (10, 738998), (13, 568460), (20, 369499), (26, 284230), (43, 171860), (52, 142115), (65, 113692), (86, 85930), (130, 56846), (172, 42965), (215, 34372), (260, 28423), (430, 17186), (559, 13220), (661, 11180), (860, 8593), (1118, 6610), (1322, 5590), (2236, 3305), (2644, 2795)]