20303868

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{829}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 51406880

約数和(自身を除く): 31103012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 157, 314, 471, 628, 829, 942, 1658, 1884, 2041, 2487, 3316, 4082, 4974, 6123, 8164, 9948, 10777, 12246, 21554, 24492, 32331, 43108, 64662, 129324, 130153, 260306, 390459, 520612, 780918, 1561836, 1691989, 3383978, 5075967, 6767956, 10151934, 20303868]

約数ペア:

[(1, 20303868), (2, 10151934), (3, 6767956), (4, 5075967), (6, 3383978), (12, 1691989), (13, 1561836), (26, 780918), (39, 520612), (52, 390459), (78, 260306), (156, 130153), (157, 129324), (314, 64662), (471, 43108), (628, 32331), (829, 24492), (942, 21554), (1658, 12246), (1884, 10777), (2041, 9948), (2487, 8164), (3316, 6123), (4082, 4974)]