56420780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217003}}^1$

素因数の和:217025

約数の個数: 24

約数和(自身を含む): 127598352

約数和(自身を除く): 71177572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 217003, 434006, 868012, 1085015, 2170030, 2821039, 4340060, 5642078, 11284156, 14105195, 28210390, 56420780]

約数ペア:

[(1, 56420780), (2, 28210390), (4, 14105195), (5, 11284156), (10, 5642078), (13, 4340060), (20, 2821039), (26, 2170030), (52, 1085015), (65, 868012), (130, 434006), (260, 217003)]