157007020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{383}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 335462400

約数和(自身を除く): 178455380

約数列:

[1, 2, 4, 5, 10, 20, 103, 199, 206, 383, 398, 412, 515, 766, 796, 995, 1030, 1532, 1915, 1990, 2060, 3830, 3980, 7660, 20497, 39449, 40994, 76217, 78898, 81988, 102485, 152434, 157796, 197245, 204970, 304868, 381085, 394490, 409940, 762170, 788980, 1524340, 7850351, 15700702, 31401404, 39251755, 78503510, 157007020]

約数ペア:

[(1, 157007020), (2, 78503510), (4, 39251755), (5, 31401404), (10, 15700702), (20, 7850351), (103, 1524340), (199, 788980), (206, 762170), (383, 409940), (398, 394490), (412, 381085), (515, 304868), (766, 204970), (796, 197245), (995, 157796), (1030, 152434), (1532, 102485), (1915, 81988), (1990, 78898), (2060, 76217), (3830, 40994), (3980, 39449), (7660, 20497)]