28560078

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:162

約数の個数: 72

約数和(自身を含む): 68042520

約数和(自身を除く): 39482442

約数列:

[1, 2, 3, 6, 9, 18, 19, 37, 38, 57, 61, 74, 111, 114, 122, 171, 183, 222, 333, 342, 366, 549, 666, 703, 1098, 1159, 1369, 1406, 2109, 2257, 2318, 2738, 3477, 4107, 4218, 4514, 6327, 6771, 6954, 8214, 10431, 12321, 12654, 13542, 20313, 20862, 24642, 26011, 40626, 42883, 52022, 78033, 83509, 85766, 128649, 156066, 167018, 234099, 250527, 257298, 385947, 468198, 501054, 751581, 771894, 1503162, 1586671, 3173342, 4760013, 9520026, 14280039, 28560078]

約数ペア:

[(1, 28560078), (2, 14280039), (3, 9520026), (6, 4760013), (9, 3173342), (18, 1586671), (19, 1503162), (37, 771894), (38, 751581), (57, 501054), (61, 468198), (74, 385947), (111, 257298), (114, 250527), (122, 234099), (171, 167018), (183, 156066), (222, 128649), (333, 85766), (342, 83509), (366, 78033), (549, 52022), (666, 42883), (703, 40626), (1098, 26011), (1159, 24642), (1369, 20862), (1406, 20313), (2109, 13542), (2257, 12654), (2318, 12321), (2738, 10431), (3477, 8214), (4107, 6954), (4218, 6771), (4514, 6327)]