550057720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{1657}}^1$

素因数の和:1904

約数の個数: 64

約数和(自身を含む): 1273741920

約数和(自身を除く): 723684200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 193, 215, 344, 386, 430, 772, 860, 965, 1544, 1657, 1720, 1930, 3314, 3860, 6628, 7720, 8285, 8299, 13256, 16570, 16598, 33140, 33196, 41495, 66280, 66392, 71251, 82990, 142502, 165980, 285004, 319801, 331960, 356255, 570008, 639602, 712510, 1279204, 1425020, 1599005, 2558408, 2850040, 3198010, 6396020, 12792040, 13751443, 27502886, 55005772, 68757215, 110011544, 137514430, 275028860, 550057720]

約数ペア:

[(1, 550057720), (2, 275028860), (4, 137514430), (5, 110011544), (8, 68757215), (10, 55005772), (20, 27502886), (40, 13751443), (43, 12792040), (86, 6396020), (172, 3198010), (193, 2850040), (215, 2558408), (344, 1599005), (386, 1425020), (430, 1279204), (772, 712510), (860, 639602), (965, 570008), (1544, 356255), (1657, 331960), (1720, 319801), (1930, 285004), (3314, 165980), (3860, 142502), (6628, 82990), (7720, 71251), (8285, 66392), (8299, 66280), (13256, 41495), (16570, 33196), (16598, 33140)]