19704780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109471}}^1$

素因数の和:109486

約数の個数: 36

約数和(自身を含む): 59771712

約数和(自身を除く): 40066932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109471, 218942, 328413, 437884, 547355, 656826, 985239, 1094710, 1313652, 1642065, 1970478, 2189420, 3284130, 3940956, 4926195, 6568260, 9852390, 19704780]

約数ペア:

[(1, 19704780), (2, 9852390), (3, 6568260), (4, 4926195), (5, 3940956), (6, 3284130), (9, 2189420), (10, 1970478), (12, 1642065), (15, 1313652), (18, 1094710), (20, 985239), (30, 656826), (36, 547355), (45, 437884), (60, 328413), (90, 218942), (180, 109471)]