290988700

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{14771}}^1$

素因数の和:14982

約数の個数: 36

約数和(自身を含む): 634693752

約数和(自身を除く): 343705052

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 985, 1970, 3940, 4925, 9850, 14771, 19700, 29542, 59084, 73855, 147710, 295420, 369275, 738550, 1477100, 2909887, 5819774, 11639548, 14549435, 29098870, 58197740, 72747175, 145494350, 290988700]

約数ペア:

[(1, 290988700), (2, 145494350), (4, 72747175), (5, 58197740), (10, 29098870), (20, 14549435), (25, 11639548), (50, 5819774), (100, 2909887), (197, 1477100), (394, 738550), (788, 369275), (985, 295420), (1970, 147710), (3940, 73855), (4925, 59084), (9850, 29542), (14771, 19700)]