19942728

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1559}}^1$

素因数の和:1622

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 35094072

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 41, 52, 78, 82, 104, 123, 156, 164, 246, 312, 328, 492, 533, 984, 1066, 1559, 1599, 2132, 3118, 3198, 4264, 4677, 6236, 6396, 9354, 12472, 12792, 18708, 20267, 37416, 40534, 60801, 63919, 81068, 121602, 127838, 162136, 191757, 243204, 255676, 383514, 486408, 511352, 767028, 830947, 1534056, 1661894, 2492841, 3323788, 4985682, 6647576, 9971364, 19942728]

約数ペア:

[(1, 19942728), (2, 9971364), (3, 6647576), (4, 4985682), (6, 3323788), (8, 2492841), (12, 1661894), (13, 1534056), (24, 830947), (26, 767028), (39, 511352), (41, 486408), (52, 383514), (78, 255676), (82, 243204), (104, 191757), (123, 162136), (156, 127838), (164, 121602), (246, 81068), (312, 63919), (328, 60801), (492, 40534), (533, 37416), (984, 20267), (1066, 18708), (1559, 12792), (1599, 12472), (2132, 9354), (3118, 6396), (3198, 6236), (4264, 4677)]