2078238640

素因数分解:

$2^4\times 5^1\times {\mathrm{401}}^1\times {\mathrm{64783}}^1$

素因数の和:65197

約数の個数: 40

約数和(自身を含む): 4844029248

約数和(自身を除く): 2765790608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 401, 802, 1604, 2005, 3208, 4010, 6416, 8020, 16040, 32080, 64783, 129566, 259132, 323915, 518264, 647830, 1036528, 1295660, 2591320, 5182640, 25977983, 51955966, 103911932, 129889915, 207823864, 259779830, 415647728, 519559660, 1039119320, 2078238640]

約数ペア:

[(1, 2078238640), (2, 1039119320), (4, 519559660), (5, 415647728), (8, 259779830), (10, 207823864), (16, 129889915), (20, 103911932), (40, 51955966), (80, 25977983), (401, 5182640), (802, 2591320), (1604, 1295660), (2005, 1036528), (3208, 647830), (4010, 518264), (6416, 323915), (8020, 259132), (16040, 129566), (32080, 64783)]