20756556720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9609517}}^1$

素因数の和:9609539

約数の個数: 80

約数和(自身を含む): 71494813920

約数和(自身を除く): 50738257200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9609517, 19219034, 28828551, 38438068, 48047585, 57657102, 76876136, 86485653, 96095170, 115314204, 144142755, 153752272, 172971306, 192190340, 230628408, 259456959, 288285510, 345942612, 384380680, 432428265, 461256816, 518913918, 576571020, 691885224, 768761360, 864856530, 1037827836, 1153142040, 1297284795, 1383770448, 1729713060, 2075655672, 2306284080, 2594569590, 3459426120, 4151311344, 5189139180, 6918852240, 10378278360, 20756556720]

約数ペア:

[(1, 20756556720), (2, 10378278360), (3, 6918852240), (4, 5189139180), (5, 4151311344), (6, 3459426120), (8, 2594569590), (9, 2306284080), (10, 2075655672), (12, 1729713060), (15, 1383770448), (16, 1297284795), (18, 1153142040), (20, 1037827836), (24, 864856530), (27, 768761360), (30, 691885224), (36, 576571020), (40, 518913918), (45, 461256816), (48, 432428265), (54, 384380680), (60, 345942612), (72, 288285510), (80, 259456959), (90, 230628408), (108, 192190340), (120, 172971306), (135, 153752272), (144, 144142755), (180, 115314204), (216, 96095170), (240, 86485653), (270, 76876136), (360, 57657102), (432, 48047585), (540, 38438068), (720, 28828551), (1080, 19219034), (2160, 9609517)]