90843702980

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{164209}}^1$

素因数の和:164556

約数の個数: 48

約数和(自身を含む): 193110960000

約数和(自身を除く): 102267257020

約数列:

[1, 2, 4, 5, 10, 20, 139, 199, 278, 398, 556, 695, 796, 995, 1390, 1990, 2780, 3980, 27661, 55322, 110644, 138305, 164209, 276610, 328418, 553220, 656836, 821045, 1642090, 3284180, 22825051, 32677591, 45650102, 65355182, 91300204, 114125255, 130710364, 163387955, 228250510, 326775910, 456501020, 653551820, 4542185149, 9084370298, 18168740596, 22710925745, 45421851490, 90843702980]

約数ペア:

[(1, 90843702980), (2, 45421851490), (4, 22710925745), (5, 18168740596), (10, 9084370298), (20, 4542185149), (139, 653551820), (199, 456501020), (278, 326775910), (398, 228250510), (556, 163387955), (695, 130710364), (796, 114125255), (995, 91300204), (1390, 65355182), (1990, 45650102), (2780, 32677591), (3980, 22825051), (27661, 3284180), (55322, 1642090), (110644, 821045), (138305, 656836), (164209, 553220), (276610, 328418)]