20450820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:349

約数の個数: 96

約数和(自身を含む): 62431488

約数和(自身を除く): 41980668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 157, 167, 195, 260, 314, 334, 390, 471, 501, 628, 668, 780, 785, 835, 942, 1002, 1570, 1670, 1884, 2004, 2041, 2171, 2355, 2505, 3140, 3340, 4082, 4342, 4710, 5010, 6123, 6513, 8164, 8684, 9420, 10020, 10205, 10855, 12246, 13026, 20410, 21710, 24492, 26052, 26219, 30615, 32565, 40820, 43420, 52438, 61230, 65130, 78657, 104876, 122460, 130260, 131095, 157314, 262190, 314628, 340847, 393285, 524380, 681694, 786570, 1022541, 1363388, 1573140, 1704235, 2045082, 3408470, 4090164, 5112705, 6816940, 10225410, 20450820]

約数ペア:

[(1, 20450820), (2, 10225410), (3, 6816940), (4, 5112705), (5, 4090164), (6, 3408470), (10, 2045082), (12, 1704235), (13, 1573140), (15, 1363388), (20, 1022541), (26, 786570), (30, 681694), (39, 524380), (52, 393285), (60, 340847), (65, 314628), (78, 262190), (130, 157314), (156, 131095), (157, 130260), (167, 122460), (195, 104876), (260, 78657), (314, 65130), (334, 61230), (390, 52438), (471, 43420), (501, 40820), (628, 32565), (668, 30615), (780, 26219), (785, 26052), (835, 24492), (942, 21710), (1002, 20410), (1570, 13026), (1670, 12246), (1884, 10855), (2004, 10205), (2041, 10020), (2171, 9420), (2355, 8684), (2505, 8164), (3140, 6513), (3340, 6123), (4082, 5010), (4342, 4710)]