20218557100

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1255811}}^1$

素因数の和:1255855

約数の個数: 72

約数和(自身を含む): 52322151168

約数和(自身を除く): 32103594068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 322, 350, 460, 575, 644, 700, 805, 1150, 1610, 2300, 3220, 4025, 8050, 16100, 1255811, 2511622, 5023244, 6279055, 8790677, 12558110, 17581354, 25116220, 28883653, 31395275, 35162708, 43953385, 57767306, 62790550, 87906770, 115534612, 125581100, 144418265, 175813540, 202185571, 219766925, 288836530, 404371142, 439533850, 577673060, 722091325, 808742284, 879067700, 1010927855, 1444182650, 2021855710, 2888365300, 4043711420, 5054639275, 10109278550, 20218557100]

約数ペア:

[(1, 20218557100), (2, 10109278550), (4, 5054639275), (5, 4043711420), (7, 2888365300), (10, 2021855710), (14, 1444182650), (20, 1010927855), (23, 879067700), (25, 808742284), (28, 722091325), (35, 577673060), (46, 439533850), (50, 404371142), (70, 288836530), (92, 219766925), (100, 202185571), (115, 175813540), (140, 144418265), (161, 125581100), (175, 115534612), (230, 87906770), (322, 62790550), (350, 57767306), (460, 43953385), (575, 35162708), (644, 31395275), (700, 28883653), (805, 25116220), (1150, 17581354), (1610, 12558110), (2300, 8790677), (3220, 6279055), (4025, 5023244), (8050, 2511622), (16100, 1255811)]