20581020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{38113}}^1$

素因数の和:38131

約数の個数: 48

約数和(自身を含む): 64031520

約数和(自身を除く): 43450500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 38113, 76226, 114339, 152452, 190565, 228678, 343017, 381130, 457356, 571695, 686034, 762260, 1029051, 1143390, 1372068, 1715085, 2058102, 2286780, 3430170, 4116204, 5145255, 6860340, 10290510, 20581020]

約数ペア:

[(1, 20581020), (2, 10290510), (3, 6860340), (4, 5145255), (5, 4116204), (6, 3430170), (9, 2286780), (10, 2058102), (12, 1715085), (15, 1372068), (18, 1143390), (20, 1029051), (27, 762260), (30, 686034), (36, 571695), (45, 457356), (54, 381130), (60, 343017), (90, 228678), (108, 190565), (135, 152452), (180, 114339), (270, 76226), (540, 38113)]