405212080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{55661}}^1$

素因数の和:55694

約数の個数: 80

約数和(自身を含む): 1159550784

約数和(自身を除く): 754338704

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 55661, 111322, 222644, 278305, 389627, 445288, 556610, 723593, 779254, 890576, 1113220, 1447186, 1558508, 1948135, 2226440, 2894372, 3117016, 3617965, 3896270, 4452880, 5065151, 5788744, 6234032, 7235930, 7792540, 10130302, 11577488, 14471860, 15585080, 20260604, 25325755, 28943720, 31170160, 40521208, 50651510, 57887440, 81042416, 101303020, 202606040, 405212080]

約数ペア:

[(1, 405212080), (2, 202606040), (4, 101303020), (5, 81042416), (7, 57887440), (8, 50651510), (10, 40521208), (13, 31170160), (14, 28943720), (16, 25325755), (20, 20260604), (26, 15585080), (28, 14471860), (35, 11577488), (40, 10130302), (52, 7792540), (56, 7235930), (65, 6234032), (70, 5788744), (80, 5065151), (91, 4452880), (104, 3896270), (112, 3617965), (130, 3117016), (140, 2894372), (182, 2226440), (208, 1948135), (260, 1558508), (280, 1447186), (364, 1113220), (455, 890576), (520, 779254), (560, 723593), (728, 556610), (910, 445288), (1040, 389627), (1456, 278305), (1820, 222644), (3640, 111322), (7280, 55661)]