87707990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{14891}}^1$

素因数の和:14948

約数の個数: 32

約数和(自身を含む): 171555840

約数和(自身を除く): 83847850

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 14891, 29782, 74455, 148910, 282929, 461621, 565858, 923242, 1414645, 2308105, 2829290, 4616210, 8770799, 17541598, 43853995, 87707990]

約数ペア:

[(1, 87707990), (2, 43853995), (5, 17541598), (10, 8770799), (19, 4616210), (31, 2829290), (38, 2308105), (62, 1414645), (95, 923242), (155, 565858), (190, 461621), (310, 282929), (589, 148910), (1178, 74455), (2945, 29782), (5890, 14891)]