19870391570

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{20443}}^1$

素因数の和:20595

約数の個数: 48

約数和(自身を含む): 37279061568

約数和(自身を除く): 17408669998

約数列:

[1, 2, 5, 10, 37, 71, 74, 142, 185, 355, 370, 710, 1369, 2627, 2738, 5254, 6845, 13135, 13690, 20443, 26270, 40886, 97199, 102215, 194398, 204430, 485995, 756391, 971990, 1451453, 1512782, 2902906, 3781955, 7257265, 7563910, 14514530, 27986467, 53703761, 55972934, 107407522, 139932335, 268518805, 279864670, 537037610, 1987039157, 3974078314, 9935195785, 19870391570]

約数ペア:

[(1, 19870391570), (2, 9935195785), (5, 3974078314), (10, 1987039157), (37, 537037610), (71, 279864670), (74, 268518805), (142, 139932335), (185, 107407522), (355, 55972934), (370, 53703761), (710, 27986467), (1369, 14514530), (2627, 7563910), (2738, 7257265), (5254, 3781955), (6845, 2902906), (13135, 1512782), (13690, 1451453), (20443, 971990), (26270, 756391), (40886, 485995), (97199, 204430), (102215, 194398)]