19784340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109913}}^1$

素因数の和:109928

約数の個数: 36

約数和(自身を含む): 60013044

約数和(自身を除く): 40228704

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 109913, 219826, 329739, 439652, 549565, 659478, 989217, 1099130, 1318956, 1648695, 1978434, 2198260, 3297390, 3956868, 4946085, 6594780, 9892170, 19784340]

約数ペア:

[(1, 19784340), (2, 9892170), (3, 6594780), (4, 4946085), (5, 3956868), (6, 3297390), (9, 2198260), (10, 1978434), (12, 1648695), (15, 1318956), (18, 1099130), (20, 989217), (30, 659478), (36, 549565), (45, 439652), (60, 329739), (90, 219826), (180, 109913)]