19908090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{221201}}^1$

素因数の和:221214

約数の個数: 24

約数和(自身を含む): 51761268

約数和(自身を除く): 31853178

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 221201, 442402, 663603, 1106005, 1327206, 1990809, 2212010, 3318015, 3981618, 6636030, 9954045, 19908090]

約数ペア:

[(1, 19908090), (2, 9954045), (3, 6636030), (5, 3981618), (6, 3318015), (9, 2212010), (10, 1990809), (15, 1327206), (18, 1106005), (30, 663603), (45, 442402), (90, 221201)]