18913320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:615

約数の個数: 96

約数和(自身を含む): 62169120

約数和(自身を除く): 43255800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 107, 120, 180, 214, 321, 360, 428, 491, 535, 642, 856, 963, 982, 1070, 1284, 1473, 1605, 1926, 1964, 2140, 2455, 2568, 2946, 3210, 3852, 3928, 4280, 4419, 4815, 4910, 5892, 6420, 7365, 7704, 8838, 9630, 9820, 11784, 12840, 14730, 17676, 19260, 19640, 22095, 29460, 35352, 38520, 44190, 52537, 58920, 88380, 105074, 157611, 176760, 210148, 262685, 315222, 420296, 472833, 525370, 630444, 788055, 945666, 1050740, 1260888, 1576110, 1891332, 2101480, 2364165, 3152220, 3782664, 4728330, 6304440, 9456660, 18913320]

約数ペア:

[(1, 18913320), (2, 9456660), (3, 6304440), (4, 4728330), (5, 3782664), (6, 3152220), (8, 2364165), (9, 2101480), (10, 1891332), (12, 1576110), (15, 1260888), (18, 1050740), (20, 945666), (24, 788055), (30, 630444), (36, 525370), (40, 472833), (45, 420296), (60, 315222), (72, 262685), (90, 210148), (107, 176760), (120, 157611), (180, 105074), (214, 88380), (321, 58920), (360, 52537), (428, 44190), (491, 38520), (535, 35352), (642, 29460), (856, 22095), (963, 19640), (982, 19260), (1070, 17676), (1284, 14730), (1473, 12840), (1605, 11784), (1926, 9820), (1964, 9630), (2140, 8838), (2455, 7704), (2568, 7365), (2946, 6420), (3210, 5892), (3852, 4910), (3928, 4815), (4280, 4419)]