19979076

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1439}}^1$

素因数の和:1548

約数の個数: 48

約数和(自身を含む): 50803200

約数和(自身を除く): 30824124

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 89, 156, 178, 267, 356, 534, 1068, 1157, 1439, 2314, 2878, 3471, 4317, 4628, 5756, 6942, 8634, 13884, 17268, 18707, 37414, 56121, 74828, 112242, 128071, 224484, 256142, 384213, 512284, 768426, 1536852, 1664923, 3329846, 4994769, 6659692, 9989538, 19979076]

約数ペア:

[(1, 19979076), (2, 9989538), (3, 6659692), (4, 4994769), (6, 3329846), (12, 1664923), (13, 1536852), (26, 768426), (39, 512284), (52, 384213), (78, 256142), (89, 224484), (156, 128071), (178, 112242), (267, 74828), (356, 56121), (534, 37414), (1068, 18707), (1157, 17268), (1439, 13884), (2314, 8634), (2878, 6942), (3471, 5756), (4317, 4628)]