20568066320

素因数分解:

$2^4\times 5^1\times {\mathrm{1951}}^1\times {\mathrm{131779}}^1$

素因数の和:133743

約数の個数: 40

約数和(自身を含む): 47845628160

約数和(自身を除く): 27277561840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1951, 3902, 7804, 9755, 15608, 19510, 31216, 39020, 78040, 131779, 156080, 263558, 527116, 658895, 1054232, 1317790, 2108464, 2635580, 5271160, 10542320, 257100829, 514201658, 1028403316, 1285504145, 2056806632, 2571008290, 4113613264, 5142016580, 10284033160, 20568066320]

約数ペア:

[(1, 20568066320), (2, 10284033160), (4, 5142016580), (5, 4113613264), (8, 2571008290), (10, 2056806632), (16, 1285504145), (20, 1028403316), (40, 514201658), (80, 257100829), (1951, 10542320), (3902, 5271160), (7804, 2635580), (9755, 2108464), (15608, 1317790), (19510, 1054232), (31216, 658895), (39020, 527116), (78040, 263558), (131779, 156080)]