81506520

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{463}}^1$

素因数の和:646

約数の個数: 128

約数和(自身を含む): 273945600

約数和(自身を除く): 192439080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 163, 180, 216, 270, 326, 360, 463, 489, 540, 652, 815, 926, 978, 1080, 1304, 1389, 1467, 1630, 1852, 1956, 2315, 2445, 2778, 2934, 3260, 3704, 3912, 4167, 4401, 4630, 4890, 5556, 5868, 6520, 6945, 7335, 8334, 8802, 9260, 9780, 11112, 11736, 12501, 13890, 14670, 16668, 17604, 18520, 19560, 20835, 22005, 25002, 27780, 29340, 33336, 35208, 41670, 44010, 50004, 55560, 58680, 62505, 75469, 83340, 88020, 100008, 125010, 150938, 166680, 176040, 226407, 250020, 301876, 377345, 452814, 500040, 603752, 679221, 754690, 905628, 1132035, 1358442, 1509380, 1811256, 2037663, 2264070, 2716884, 3018760, 3396105, 4075326, 4528140, 5433768, 6792210, 8150652, 9056280, 10188315, 13584420, 16301304, 20376630, 27168840, 40753260, 81506520]

約数ペア:

[(1, 81506520), (2, 40753260), (3, 27168840), (4, 20376630), (5, 16301304), (6, 13584420), (8, 10188315), (9, 9056280), (10, 8150652), (12, 6792210), (15, 5433768), (18, 4528140), (20, 4075326), (24, 3396105), (27, 3018760), (30, 2716884), (36, 2264070), (40, 2037663), (45, 1811256), (54, 1509380), (60, 1358442), (72, 1132035), (90, 905628), (108, 754690), (120, 679221), (135, 603752), (163, 500040), (180, 452814), (216, 377345), (270, 301876), (326, 250020), (360, 226407), (463, 176040), (489, 166680), (540, 150938), (652, 125010), (815, 100008), (926, 88020), (978, 83340), (1080, 75469), (1304, 62505), (1389, 58680), (1467, 55560), (1630, 50004), (1852, 44010), (1956, 41670), (2315, 35208), (2445, 33336), (2778, 29340), (2934, 27780), (3260, 25002), (3704, 22005), (3912, 20835), (4167, 19560), (4401, 18520), (4630, 17604), (4890, 16668), (5556, 14670), (5868, 13890), (6520, 12501), (6945, 11736), (7335, 11112), (8334, 9780), (8802, 9260)]