20188751024

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{961003}}^1$

素因数の和:961125

約数の個数: 40

約数和(自身を含む): 42541725072

約数和(自身を除く): 22352974048

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 101, 104, 202, 208, 404, 808, 1313, 1616, 2626, 5252, 10504, 21008, 961003, 1922006, 3844012, 7688024, 12493039, 15376048, 24986078, 49972156, 97061303, 99944312, 194122606, 199888624, 388245212, 776490424, 1261796939, 1552980848, 2523593878, 5047187756, 10094375512, 20188751024]

約数ペア:

[(1, 20188751024), (2, 10094375512), (4, 5047187756), (8, 2523593878), (13, 1552980848), (16, 1261796939), (26, 776490424), (52, 388245212), (101, 199888624), (104, 194122606), (202, 99944312), (208, 97061303), (404, 49972156), (808, 24986078), (1313, 15376048), (1616, 12493039), (2626, 7688024), (5252, 3844012), (10504, 1922006), (21008, 961003)]