20879988

素因数分解:

$2^2\times 3^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 52948224

約数和(自身を除く): 32068236

約数列:

[1, 2, 3, 4, 6, 12, 31, 37, 41, 62, 74, 82, 93, 111, 123, 124, 148, 164, 186, 222, 246, 372, 444, 492, 1147, 1271, 1369, 1517, 2294, 2542, 2738, 3034, 3441, 3813, 4107, 4551, 4588, 5084, 5476, 6068, 6882, 7626, 8214, 9102, 13764, 15252, 16428, 18204, 42439, 47027, 56129, 84878, 94054, 112258, 127317, 141081, 168387, 169756, 188108, 224516, 254634, 282162, 336774, 509268, 564324, 673548, 1739999, 3479998, 5219997, 6959996, 10439994, 20879988]

約数ペア:

[(1, 20879988), (2, 10439994), (3, 6959996), (4, 5219997), (6, 3479998), (12, 1739999), (31, 673548), (37, 564324), (41, 509268), (62, 336774), (74, 282162), (82, 254634), (93, 224516), (111, 188108), (123, 169756), (124, 168387), (148, 141081), (164, 127317), (186, 112258), (222, 94054), (246, 84878), (372, 56129), (444, 47027), (492, 42439), (1147, 18204), (1271, 16428), (1369, 15252), (1517, 13764), (2294, 9102), (2542, 8214), (2738, 7626), (3034, 6882), (3441, 6068), (3813, 5476), (4107, 5084), (4551, 4588)]