128563440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1091}}^1$

素因数の和:1598

約数の個数: 80

約数和(自身を含む): 399724416

約数和(自身を除く): 271160976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 491, 982, 1091, 1473, 1964, 2182, 2455, 2946, 3273, 3928, 4364, 4910, 5455, 5892, 6546, 7365, 7856, 8728, 9820, 10910, 11784, 13092, 14730, 16365, 17456, 19640, 21820, 23568, 26184, 29460, 32730, 39280, 43640, 52368, 58920, 65460, 87280, 117840, 130920, 261840, 535681, 1071362, 1607043, 2142724, 2678405, 3214086, 4285448, 5356810, 6428172, 8035215, 8570896, 10713620, 12856344, 16070430, 21427240, 25712688, 32140860, 42854480, 64281720, 128563440]

約数ペア:

[(1, 128563440), (2, 64281720), (3, 42854480), (4, 32140860), (5, 25712688), (6, 21427240), (8, 16070430), (10, 12856344), (12, 10713620), (15, 8570896), (16, 8035215), (20, 6428172), (24, 5356810), (30, 4285448), (40, 3214086), (48, 2678405), (60, 2142724), (80, 1607043), (120, 1071362), (240, 535681), (491, 261840), (982, 130920), (1091, 117840), (1473, 87280), (1964, 65460), (2182, 58920), (2455, 52368), (2946, 43640), (3273, 39280), (3928, 32730), (4364, 29460), (4910, 26184), (5455, 23568), (5892, 21820), (6546, 19640), (7365, 17456), (7856, 16365), (8728, 14730), (9820, 13092), (10910, 11784)]