79678700

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{1987}}^1$

素因数の和:2402

約数の個数: 36

約数和(自身を含む): 173421192

約数和(自身を除く): 93742492

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 802, 1604, 1987, 2005, 3974, 4010, 7948, 8020, 9935, 10025, 19870, 20050, 39740, 40100, 49675, 99350, 198700, 796787, 1593574, 3187148, 3983935, 7967870, 15935740, 19919675, 39839350, 79678700]

約数ペア:

[(1, 79678700), (2, 39839350), (4, 19919675), (5, 15935740), (10, 7967870), (20, 3983935), (25, 3187148), (50, 1593574), (100, 796787), (401, 198700), (802, 99350), (1604, 49675), (1987, 40100), (2005, 39740), (3974, 20050), (4010, 19870), (7948, 10025), (8020, 9935)]