64281720

素因数分解:

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

素因数の和:1596

約数の個数: 64

約数和(自身を含む): 193415040

約数和(自身を除く): 129133320

約数列:

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

約数ペア:

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