18354470

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:640

約数の個数: 32

約数和(自身を含む): 34292160

約数和(自身を除く): 15937690

約数列:

[1, 2, 5, 10, 41, 82, 89, 178, 205, 410, 445, 503, 890, 1006, 2515, 3649, 5030, 7298, 18245, 20623, 36490, 41246, 44767, 89534, 103115, 206230, 223835, 447670, 1835447, 3670894, 9177235, 18354470]

約数ペア:

[(1, 18354470), (2, 9177235), (5, 3670894), (10, 1835447), (41, 447670), (82, 223835), (89, 206230), (178, 103115), (205, 89534), (410, 44767), (445, 41246), (503, 36490), (890, 20623), (1006, 18245), (2515, 7298), (3649, 5030)]