2557278

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 6220800

約数和(自身を除く): 3663522

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 29, 46, 54, 58, 69, 71, 87, 138, 142, 174, 207, 213, 261, 414, 426, 522, 621, 639, 667, 783, 1242, 1278, 1334, 1566, 1633, 1917, 2001, 2059, 3266, 3834, 4002, 4118, 4899, 6003, 6177, 9798, 12006, 12354, 14697, 18009, 18531, 29394, 36018, 37062, 44091, 47357, 55593, 88182, 94714, 111186, 142071, 284142, 426213, 852426, 1278639, 2557278]

約数ペア:

[(1, 2557278), (2, 1278639), (3, 852426), (6, 426213), (9, 284142), (18, 142071), (23, 111186), (27, 94714), (29, 88182), (46, 55593), (54, 47357), (58, 44091), (69, 37062), (71, 36018), (87, 29394), (138, 18531), (142, 18009), (174, 14697), (207, 12354), (213, 12006), (261, 9798), (414, 6177), (426, 6003), (522, 4899), (621, 4118), (639, 4002), (667, 3834), (783, 3266), (1242, 2059), (1278, 2001), (1334, 1917), (1566, 1633)]