28518980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29101}}^1$

素因数の和:29124

約数の個数: 36

約数和(自身を含む): 69670188

約数和(自身を除く): 41151208

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 29101, 58202, 116404, 145505, 203707, 291010, 407414, 582020, 814828, 1018535, 1425949, 2037070, 2851898, 4074140, 5703796, 7129745, 14259490, 28518980]

約数ペア:

[(1, 28518980), (2, 14259490), (4, 7129745), (5, 5703796), (7, 4074140), (10, 2851898), (14, 2037070), (20, 1425949), (28, 1018535), (35, 814828), (49, 582020), (70, 407414), (98, 291010), (140, 203707), (196, 145505), (245, 116404), (490, 58202), (980, 29101)]