520740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 1729728

約数和(自身を除く): 1208988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 263, 330, 396, 495, 526, 660, 789, 990, 1052, 1315, 1578, 1980, 2367, 2630, 2893, 3156, 3945, 4734, 5260, 5786, 7890, 8679, 9468, 11572, 11835, 14465, 15780, 17358, 23670, 26037, 28930, 34716, 43395, 47340, 52074, 57860, 86790, 104148, 130185, 173580, 260370, 520740]

約数ペア:

[(1, 520740), (2, 260370), (3, 173580), (4, 130185), (5, 104148), (6, 86790), (9, 57860), (10, 52074), (11, 47340), (12, 43395), (15, 34716), (18, 28930), (20, 26037), (22, 23670), (30, 17358), (33, 15780), (36, 14465), (44, 11835), (45, 11572), (55, 9468), (60, 8679), (66, 7890), (90, 5786), (99, 5260), (110, 4734), (132, 3945), (165, 3156), (180, 2893), (198, 2630), (220, 2367), (263, 1980), (330, 1578), (396, 1315), (495, 1052), (526, 990), (660, 789)]