20558616

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{503}}^1$

素因数の和:656

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 35324904

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 131, 156, 262, 312, 393, 503, 524, 786, 1006, 1048, 1509, 1572, 1703, 2012, 3018, 3144, 3406, 4024, 5109, 6036, 6539, 6812, 10218, 12072, 13078, 13624, 19617, 20436, 26156, 39234, 40872, 52312, 65893, 78468, 131786, 156936, 197679, 263572, 395358, 527144, 790716, 856609, 1581432, 1713218, 2569827, 3426436, 5139654, 6852872, 10279308, 20558616]

約数ペア:

[(1, 20558616), (2, 10279308), (3, 6852872), (4, 5139654), (6, 3426436), (8, 2569827), (12, 1713218), (13, 1581432), (24, 856609), (26, 790716), (39, 527144), (52, 395358), (78, 263572), (104, 197679), (131, 156936), (156, 131786), (262, 78468), (312, 65893), (393, 52312), (503, 40872), (524, 39234), (786, 26156), (1006, 20436), (1048, 19617), (1509, 13624), (1572, 13078), (1703, 12072), (2012, 10218), (3018, 6812), (3144, 6539), (3406, 6036), (4024, 5109)]