20383790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3989}}^1$

素因数の和:4076

約数の個数: 32

約数和(自身を含む): 42517440

約数和(自身を除く): 22133650

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 3989, 5110, 7978, 19945, 27923, 39890, 55846, 139615, 279230, 291197, 582394, 1455985, 2038379, 2911970, 4076758, 10191895, 20383790]

約数ペア:

[(1, 20383790), (2, 10191895), (5, 4076758), (7, 2911970), (10, 2038379), (14, 1455985), (35, 582394), (70, 291197), (73, 279230), (146, 139615), (365, 55846), (511, 39890), (730, 27923), (1022, 19945), (2555, 7978), (3989, 5110)]