78912009

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 134830080

約数和(自身を除く): 55918071

約数列:

[1, 3, 9, 11, 27, 33, 37, 43, 99, 111, 129, 167, 297, 333, 387, 407, 473, 501, 999, 1161, 1221, 1419, 1503, 1591, 1837, 3663, 4257, 4509, 4773, 5511, 6179, 7181, 10989, 12771, 14319, 16533, 17501, 18537, 21543, 42957, 49599, 52503, 55611, 64629, 67969, 78991, 157509, 166833, 193887, 203907, 236973, 265697, 472527, 611721, 710919, 797091, 1835163, 2132757, 2391273, 2922667, 7173819, 8768001, 26304003, 78912009]

約数ペア:

[(1, 78912009), (3, 26304003), (9, 8768001), (11, 7173819), (27, 2922667), (33, 2391273), (37, 2132757), (43, 1835163), (99, 797091), (111, 710919), (129, 611721), (167, 472527), (297, 265697), (333, 236973), (387, 203907), (407, 193887), (473, 166833), (501, 157509), (999, 78991), (1161, 67969), (1221, 64629), (1419, 55611), (1503, 52503), (1591, 49599), (1837, 42957), (3663, 21543), (4257, 18537), (4509, 17501), (4773, 16533), (5511, 14319), (6179, 12771), (7181, 10989)]